Home / 731,106.91-1,009,181.58-502,421.43

Finding the Fourth Proportional to 731,106.91, 1,009,181.58 and 502,421.43

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Solution

The fourth proportional to 731,106.91, 1,009,181.58 and 502,421.43 is: 693,516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,106.91 : 1,009,181.58 = 502,421.43 : x
  2. Step 2: Convert to fraction form
    731,106.91/1,009,181.58 = 502,421.43/x
  3. Step 3: Cross multiply
    731,106.91x = 1,009,181.58 × 502,421.43
  4. Step 4: Simplify right side
    731,106.91x = 507,034,457,279.73
  5. Step 5: Solve for x
    x = 507,034,457,279.73/731,106.91
  6. Step 6: Final answer
    x = 693,516.16

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.