Home / 1,011,693.12-1,517,090.40-538,278.72

Finding the Fourth Proportional to 1,011,693.12, 1,517,090.40 and 538,278.72

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Solution

The fourth proportional to 1,011,693.12, 1,517,090.40 and 538,278.72 is: 807,179.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,693.12 : 1,517,090.40 = 538,278.72 : x
  2. Step 2: Convert to fraction form
    1,011,693.12/1,517,090.40 = 538,278.72/x
  3. Step 3: Cross multiply
    1,011,693.12x = 1,517,090.40 × 538,278.72
  4. Step 4: Simplify right side
    1,011,693.12x = 816,617,478,636.29
  5. Step 5: Solve for x
    x = 816,617,478,636.29/1,011,693.12
  6. Step 6: Final answer
    x = 807,179.04

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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.