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Finding the Fourth Proportional to 716,294.58, 987,980.72 and 608,120.08

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Solution

The fourth proportional to 716,294.58, 987,980.72 and 608,120.08 is: 838,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,294.58 : 987,980.72 = 608,120.08 : x
  2. Step 2: Convert to fraction form
    716,294.58/987,980.72 = 608,120.08/x
  3. Step 3: Cross multiply
    716,294.58x = 987,980.72 × 608,120.08
  4. Step 4: Simplify right side
    716,294.58x = 600,810,914,484.86
  5. Step 5: Solve for x
    x = 600,810,914,484.86/716,294.58
  6. Step 6: Final answer
    x = 838,776.30

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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.