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Finding the Fourth Proportional to 708,010.37, 977,020.34 and 402,046.37

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Solution

The fourth proportional to 708,010.37, 977,020.34 and 402,046.37 is: 554,804.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,010.37 : 977,020.34 = 402,046.37 : x
  2. Step 2: Convert to fraction form
    708,010.37/977,020.34 = 402,046.37/x
  3. Step 3: Cross multiply
    708,010.37x = 977,020.34 × 402,046.37
  4. Step 4: Simplify right side
    708,010.37x = 392,807,474,217.83
  5. Step 5: Solve for x
    x = 392,807,474,217.83/708,010.37
  6. Step 6: Final answer
    x = 554,804.69

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Double scale
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Similar ratio
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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.