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Finding the Fourth Proportional to 708,033.66, 977,052.39 and 402,069.66

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Solution

The fourth proportional to 708,033.66, 977,052.39 and 402,069.66 is: 554,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,033.66 : 977,052.39 = 402,069.66 : x
  2. Step 2: Convert to fraction form
    708,033.66/977,052.39 = 402,069.66/x
  3. Step 3: Cross multiply
    708,033.66x = 977,052.39 × 402,069.66
  4. Step 4: Simplify right side
    708,033.66x = 392,843,122,249.49
  5. Step 5: Solve for x
    x = 392,843,122,249.49/708,033.66
  6. Step 6: Final answer
    x = 554,836.79

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Double scale
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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.