Home / 1,117,417.28-1,675,848.42-318,705.71

Finding the Fourth Proportional to 1,117,417.28, 1,675,848.42 and 318,705.71

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Solution

The fourth proportional to 1,117,417.28, 1,675,848.42 and 318,705.71 is: 477,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,417.28 : 1,675,848.42 = 318,705.71 : x
  2. Step 2: Convert to fraction form
    1,117,417.28/1,675,848.42 = 318,705.71/x
  3. Step 3: Cross multiply
    1,117,417.28x = 1,675,848.42 × 318,705.71
  4. Step 4: Simplify right side
    1,117,417.28x = 534,102,452,169.24
  5. Step 5: Solve for x
    x = 534,102,452,169.24/1,117,417.28
  6. Step 6: Final answer
    x = 477,979.41

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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.