Home / 1,387,211.32-2,081,024.57-427,587.16

Finding the Fourth Proportional to 1,387,211.32, 2,081,024.57 and 427,587.16

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Solution

The fourth proportional to 1,387,211.32, 2,081,024.57 and 427,587.16 is: 641,444.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,211.32 : 2,081,024.57 = 427,587.16 : x
  2. Step 2: Convert to fraction form
    1,387,211.32/2,081,024.57 = 427,587.16/x
  3. Step 3: Cross multiply
    1,387,211.32x = 2,081,024.57 × 427,587.16
  4. Step 4: Simplify right side
    1,387,211.32x = 889,819,381,642.93
  5. Step 5: Solve for x
    x = 889,819,381,642.93/1,387,211.32
  6. Step 6: Final answer
    x = 641,444.72

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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.