Home / 487,962.94-731,973.12-188,445.10

Finding the Fourth Proportional to 487,962.94, 731,973.12 and 188,445.10

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Solution

The fourth proportional to 487,962.94, 731,973.12 and 188,445.10 is: 282,678.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,962.94 : 731,973.12 = 188,445.10 : x
  2. Step 2: Convert to fraction form
    487,962.94/731,973.12 = 188,445.10/x
  3. Step 3: Cross multiply
    487,962.94x = 731,973.12 × 188,445.10
  4. Step 4: Simplify right side
    487,962.94x = 137,936,747,795.71
  5. Step 5: Solve for x
    x = 137,936,747,795.71/487,962.94
  6. Step 6: Final answer
    x = 282,678.74

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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.