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Finding the Fourth Proportional to 708,332.60, 977,525.37 and 402,460.85

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Solution

The fourth proportional to 708,332.60, 977,525.37 and 402,460.85 is: 555,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,332.60 : 977,525.37 = 402,460.85 : x
  2. Step 2: Convert to fraction form
    708,332.60/977,525.37 = 402,460.85/x
  3. Step 3: Cross multiply
    708,332.60x = 977,525.37 × 402,460.85
  4. Step 4: Simplify right side
    708,332.60x = 393,415,686,419.14
  5. Step 5: Solve for x
    x = 393,415,686,419.14/708,332.60
  6. Step 6: Final answer
    x = 555,410.95

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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.