Home / 749,549.12-1,124,441.28-323,206.16

Finding the Fourth Proportional to 749,549.12, 1,124,441.28 and 323,206.16

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Solution

The fourth proportional to 749,549.12, 1,124,441.28 and 323,206.16 is: 484,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,549.12 : 1,124,441.28 = 323,206.16 : x
  2. Step 2: Convert to fraction form
    749,549.12/1,124,441.28 = 323,206.16/x
  3. Step 3: Cross multiply
    749,549.12x = 1,124,441.28 × 323,206.16
  4. Step 4: Simplify right side
    749,549.12x = 363,426,348,254.29
  5. Step 5: Solve for x
    x = 363,426,348,254.29/749,549.12
  6. Step 6: Final answer
    x = 484,859.95

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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.