Home / 1,449,909.76-2,000,181.12-1,020,428.16

Finding the Fourth Proportional to 1,449,909.76, 2,000,181.12 and 1,020,428.16

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Solution

The fourth proportional to 1,449,909.76, 2,000,181.12 and 1,020,428.16 is: 1,407,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,909.76 : 2,000,181.12 = 1,020,428.16 : x
  2. Step 2: Convert to fraction form
    1,449,909.76/2,000,181.12 = 1,020,428.16/x
  3. Step 3: Cross multiply
    1,449,909.76x = 2,000,181.12 × 1,020,428.16
  4. Step 4: Simplify right side
    1,449,909.76x = 2,041,041,139,948.34
  5. Step 5: Solve for x
    x = 2,041,041,139,948.34/1,449,909.76
  6. Step 6: Final answer
    x = 1,407,702.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.