Home / 1,012,278.30-1,519,000.65-381,644.70

Finding the Fourth Proportional to 1,012,278.30, 1,519,000.65 and 381,644.70

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Solution

The fourth proportional to 1,012,278.30, 1,519,000.65 and 381,644.70 is: 572,686.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,278.30 : 1,519,000.65 = 381,644.70 : x
  2. Step 2: Convert to fraction form
    1,012,278.30/1,519,000.65 = 381,644.70/x
  3. Step 3: Cross multiply
    1,012,278.30x = 1,519,000.65 × 381,644.70
  4. Step 4: Simplify right side
    1,012,278.30x = 579,718,547,369.06
  5. Step 5: Solve for x
    x = 579,718,547,369.06/1,012,278.30
  6. Step 6: Final answer
    x = 572,686.93

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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.