Home / 1,117,616.32-1,676,479.56-319,015.45

Finding the Fourth Proportional to 1,117,616.32, 1,676,479.56 and 319,015.45

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Solution

The fourth proportional to 1,117,616.32, 1,676,479.56 and 319,015.45 is: 478,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,616.32 : 1,676,479.56 = 319,015.45 : x
  2. Step 2: Convert to fraction form
    1,117,616.32/1,676,479.56 = 319,015.45/x
  3. Step 3: Cross multiply
    1,117,616.32x = 1,676,479.56 × 319,015.45
  4. Step 4: Simplify right side
    1,117,616.32x = 534,822,881,249.20
  5. Step 5: Solve for x
    x = 534,822,881,249.20/1,117,616.32
  6. Step 6: Final answer
    x = 478,538.90

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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.