Home / 1,587,281.05-2,190,463.92-862,142.93

Finding the Fourth Proportional to 1,587,281.05, 2,190,463.92 and 862,142.93

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Solution

The fourth proportional to 1,587,281.05, 2,190,463.92 and 862,142.93 is: 1,189,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,281.05 : 2,190,463.92 = 862,142.93 : x
  2. Step 2: Convert to fraction form
    1,587,281.05/2,190,463.92 = 862,142.93/x
  3. Step 3: Cross multiply
    1,587,281.05x = 2,190,463.92 × 862,142.93
  4. Step 4: Simplify right side
    1,587,281.05x = 1,888,492,971,095.77
  5. Step 5: Solve for x
    x = 1,888,492,971,095.77/1,587,281.05
  6. Step 6: Final answer
    x = 1,189,765.97

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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.