Home / 745,873.70-1,118,810.55-213,412.10

Finding the Fourth Proportional to 745,873.70, 1,118,810.55 and 213,412.10

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Solution

The fourth proportional to 745,873.70, 1,118,810.55 and 213,412.10 is: 320,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,873.70 : 1,118,810.55 = 213,412.10 : x
  2. Step 2: Convert to fraction form
    745,873.70/1,118,810.55 = 213,412.10/x
  3. Step 3: Cross multiply
    745,873.70x = 1,118,810.55 × 213,412.10
  4. Step 4: Simplify right side
    745,873.70x = 238,767,708,977.66
  5. Step 5: Solve for x
    x = 238,767,708,977.66/745,873.70
  6. Step 6: Final answer
    x = 320,118.15

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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.