Home / 1,587,462.47-2,381,159.27-389,390.66

Finding the Fourth Proportional to 1,587,462.47, 2,381,159.27 and 389,390.66

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Solution

The fourth proportional to 1,587,462.47, 2,381,159.27 and 389,390.66 is: 584,077.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,462.47 : 2,381,159.27 = 389,390.66 : x
  2. Step 2: Convert to fraction form
    1,587,462.47/2,381,159.27 = 389,390.66/x
  3. Step 3: Cross multiply
    1,587,462.47x = 2,381,159.27 × 389,390.66
  4. Step 4: Simplify right side
    1,587,462.47x = 927,201,179,710.42
  5. Step 5: Solve for x
    x = 927,201,179,710.42/1,587,462.47
  6. Step 6: Final answer
    x = 584,077.54

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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.