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Finding the Fourth Proportional to 708,524.80, 1,064,425.60 and 487,340.80

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Solution

The fourth proportional to 708,524.80, 1,064,425.60 and 487,340.80 is: 732,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,524.80 : 1,064,425.60 = 487,340.80 : x
  2. Step 2: Convert to fraction form
    708,524.80/1,064,425.60 = 487,340.80/x
  3. Step 3: Cross multiply
    708,524.80x = 1,064,425.60 × 487,340.80
  4. Step 4: Simplify right side
    708,524.80x = 518,738,023,444.48
  5. Step 5: Solve for x
    x = 518,738,023,444.48/708,524.80
  6. Step 6: Final answer
    x = 732,138.13

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1.5x scale

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.