Home / 708,528.80-1,064,431.60-487,344.80

Finding the Fourth Proportional to 708,528.80, 1,064,431.60 and 487,344.80

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Solution

The fourth proportional to 708,528.80, 1,064,431.60 and 487,344.80 is: 732,144.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,528.80 : 1,064,431.60 = 487,344.80 : x
  2. Step 2: Convert to fraction form
    708,528.80/1,064,431.60 = 487,344.80/x
  3. Step 3: Cross multiply
    708,528.80x = 1,064,431.60 × 487,344.80
  4. Step 4: Simplify right side
    708,528.80x = 518,745,205,215.68
  5. Step 5: Solve for x
    x = 518,745,205,215.68/708,528.80
  6. Step 6: Final answer
    x = 732,144.13

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Double scale
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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.