Home / 757,048.32-1,043,768.16-498,885.12

Finding the Fourth Proportional to 757,048.32, 1,043,768.16 and 498,885.12

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Solution

The fourth proportional to 757,048.32, 1,043,768.16 and 498,885.12 is: 687,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,048.32 : 1,043,768.16 = 498,885.12 : x
  2. Step 2: Convert to fraction form
    757,048.32/1,043,768.16 = 498,885.12/x
  3. Step 3: Cross multiply
    757,048.32x = 1,043,768.16 × 498,885.12
  4. Step 4: Simplify right side
    757,048.32x = 520,720,403,753.78
  5. Step 5: Solve for x
    x = 520,720,403,753.78/757,048.32
  6. Step 6: Final answer
    x = 687,829.81

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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.