Home / 748,031.40-1,032,291.54-408,509.64

Finding the Fourth Proportional to 748,031.40, 1,032,291.54 and 408,509.64

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Solution

The fourth proportional to 748,031.40, 1,032,291.54 and 408,509.64 is: 563,747.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,031.40 : 1,032,291.54 = 408,509.64 : x
  2. Step 2: Convert to fraction form
    748,031.40/1,032,291.54 = 408,509.64/x
  3. Step 3: Cross multiply
    748,031.40x = 1,032,291.54 × 408,509.64
  4. Step 4: Simplify right side
    748,031.40x = 421,701,045,380.45
  5. Step 5: Solve for x
    x = 421,701,045,380.45/748,031.40
  6. Step 6: Final answer
    x = 563,747.79

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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.