Home / 1,109,948.32-1,663,925.91-921,619

Finding the Fourth Proportional to 1,109,948.32, 1,663,925.91 and 921,619

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Solution

The fourth proportional to 1,109,948.32, 1,663,925.91 and 921,619 is: 1,381,601.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,948.32 : 1,663,925.91 = 921,619 : x
  2. Step 2: Convert to fraction form
    1,109,948.32/1,663,925.91 = 921,619/x
  3. Step 3: Cross multiply
    1,109,948.32x = 1,663,925.91 × 921,619
  4. Step 4: Simplify right side
    1,109,948.32x = 1,533,505,733,248.29
  5. Step 5: Solve for x
    x = 1,533,505,733,248.29/1,109,948.32
  6. Step 6: Final answer
    x = 1,381,601.02

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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.