Home / 1,432,088.16-1,976,278.82-820,438.93

Finding the Fourth Proportional to 1,432,088.16, 1,976,278.82 and 820,438.93

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Solution

The fourth proportional to 1,432,088.16, 1,976,278.82 and 820,438.93 is: 1,132,204.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,088.16 : 1,976,278.82 = 820,438.93 : x
  2. Step 2: Convert to fraction form
    1,432,088.16/1,976,278.82 = 820,438.93/x
  3. Step 3: Cross multiply
    1,432,088.16x = 1,976,278.82 × 820,438.93
  4. Step 4: Simplify right side
    1,432,088.16x = 1,621,416,080,462.46
  5. Step 5: Solve for x
    x = 1,621,416,080,462.46/1,432,088.16
  6. Step 6: Final answer
    x = 1,132,204.10

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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.