Home / 916,031.85-1,264,275.55-508,265.05

Finding the Fourth Proportional to 916,031.85, 1,264,275.55 and 508,265.05

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Solution

The fourth proportional to 916,031.85, 1,264,275.55 and 508,265.05 is: 701,489.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,031.85 : 1,264,275.55 = 508,265.05 : x
  2. Step 2: Convert to fraction form
    916,031.85/1,264,275.55 = 508,265.05/x
  3. Step 3: Cross multiply
    916,031.85x = 1,264,275.55 × 508,265.05
  4. Step 4: Simplify right side
    916,031.85x = 642,587,077,524.55
  5. Step 5: Solve for x
    x = 642,587,077,524.55/916,031.85
  6. Step 6: Final answer
    x = 701,489.89

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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.