Home / 674,312.28-1,011,966.16-319,325.72

Finding the Fourth Proportional to 674,312.28, 1,011,966.16 and 319,325.72

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Solution

The fourth proportional to 674,312.28, 1,011,966.16 and 319,325.72 is: 479,224.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,312.28 : 1,011,966.16 = 319,325.72 : x
  2. Step 2: Convert to fraction form
    674,312.28/1,011,966.16 = 319,325.72/x
  3. Step 3: Cross multiply
    674,312.28x = 1,011,966.16 × 319,325.72
  4. Step 4: Simplify right side
    674,312.28x = 323,146,822,657.64
  5. Step 5: Solve for x
    x = 323,146,822,657.64/674,312.28
  6. Step 6: Final answer
    x = 479,224.29

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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.