Home / 745,876.40-1,118,814.60-346,384.40

Finding the Fourth Proportional to 745,876.40, 1,118,814.60 and 346,384.40

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Solution

The fourth proportional to 745,876.40, 1,118,814.60 and 346,384.40 is: 519,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,876.40 : 1,118,814.60 = 346,384.40 : x
  2. Step 2: Convert to fraction form
    745,876.40/1,118,814.60 = 346,384.40/x
  3. Step 3: Cross multiply
    745,876.40x = 1,118,814.60 × 346,384.40
  4. Step 4: Simplify right side
    745,876.40x = 387,539,923,932.24
  5. Step 5: Solve for x
    x = 387,539,923,932.24/745,876.40
  6. Step 6: Final answer
    x = 519,576.60

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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.