Home / 1,058,539.78-1,587,807.24-459,423.28

Finding the Fourth Proportional to 1,058,539.78, 1,587,807.24 and 459,423.28

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Solution

The fourth proportional to 1,058,539.78, 1,587,807.24 and 459,423.28 is: 689,133.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,539.78 : 1,587,807.24 = 459,423.28 : x
  2. Step 2: Convert to fraction form
    1,058,539.78/1,587,807.24 = 459,423.28/x
  3. Step 3: Cross multiply
    1,058,539.78x = 1,587,807.24 × 459,423.28
  4. Step 4: Simplify right side
    1,058,539.78x = 729,475,610,208.55
  5. Step 5: Solve for x
    x = 729,475,610,208.55/1,058,539.78
  6. Step 6: Final answer
    x = 689,133.87

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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.