Home / 745,333.40-1,118,000.10-345,841.40

Finding the Fourth Proportional to 745,333.40, 1,118,000.10 and 345,841.40

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Solution

The fourth proportional to 745,333.40, 1,118,000.10 and 345,841.40 is: 518,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,333.40 : 1,118,000.10 = 345,841.40 : x
  2. Step 2: Convert to fraction form
    745,333.40/1,118,000.10 = 345,841.40/x
  3. Step 3: Cross multiply
    745,333.40x = 1,118,000.10 × 345,841.40
  4. Step 4: Simplify right side
    745,333.40x = 386,650,719,784.14
  5. Step 5: Solve for x
    x = 386,650,719,784.14/745,333.40
  6. Step 6: Final answer
    x = 518,762.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.