Home / 507,921.69-761,214.09-283,387.86

Finding the Fourth Proportional to 507,921.69, 761,214.09 and 283,387.86

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Solution

The fourth proportional to 507,921.69, 761,214.09 and 283,387.86 is: 424,708.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,921.69 : 761,214.09 = 283,387.86 : x
  2. Step 2: Convert to fraction form
    507,921.69/761,214.09 = 283,387.86/x
  3. Step 3: Cross multiply
    507,921.69x = 761,214.09 × 283,387.86
  4. Step 4: Simplify right side
    507,921.69x = 215,718,831,966.95
  5. Step 5: Solve for x
    x = 215,718,831,966.95/507,921.69
  6. Step 6: Final answer
    x = 424,708.84

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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.