Home / 748,292.64-1,032,666.48-408,782.76

Finding the Fourth Proportional to 748,292.64, 1,032,666.48 and 408,782.76

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Solution

The fourth proportional to 748,292.64, 1,032,666.48 and 408,782.76 is: 564,132.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,292.64 : 1,032,666.48 = 408,782.76 : x
  2. Step 2: Convert to fraction form
    748,292.64/1,032,666.48 = 408,782.76/x
  3. Step 3: Cross multiply
    748,292.64x = 1,032,666.48 × 408,782.76
  4. Step 4: Simplify right side
    748,292.64x = 422,136,253,853.89
  5. Step 5: Solve for x
    x = 422,136,253,853.89/748,292.64
  6. Step 6: Final answer
    x = 564,132.57

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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.