Home / 837,115.30-1,255,672.95-553,680.10

Finding the Fourth Proportional to 837,115.30, 1,255,672.95 and 553,680.10

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Solution

The fourth proportional to 837,115.30, 1,255,672.95 and 553,680.10 is: 830,520.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,115.30 : 1,255,672.95 = 553,680.10 : x
  2. Step 2: Convert to fraction form
    837,115.30/1,255,672.95 = 553,680.10/x
  3. Step 3: Cross multiply
    837,115.30x = 1,255,672.95 × 553,680.10
  4. Step 4: Simplify right side
    837,115.30x = 695,241,124,523.30
  5. Step 5: Solve for x
    x = 695,241,124,523.30/837,115.30
  6. Step 6: Final answer
    x = 830,520.15

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.