Home / 1,058,802.56-1,588,500.30-428,159.24

Finding the Fourth Proportional to 1,058,802.56, 1,588,500.30 and 428,159.24

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Solution

The fourth proportional to 1,058,802.56, 1,588,500.30 and 428,159.24 is: 642,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,802.56 : 1,588,500.30 = 428,159.24 : x
  2. Step 2: Convert to fraction form
    1,058,802.56/1,588,500.30 = 428,159.24/x
  3. Step 3: Cross multiply
    1,058,802.56x = 1,588,500.30 × 428,159.24
  4. Step 4: Simplify right side
    1,058,802.56x = 680,131,081,187.77
  5. Step 5: Solve for x
    x = 680,131,081,187.77/1,058,802.56
  6. Step 6: Final answer
    x = 642,358.74

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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.