Home / 1,058,721.80-1,588,082.70-921,864.20

Finding the Fourth Proportional to 1,058,721.80, 1,588,082.70 and 921,864.20

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Solution

The fourth proportional to 1,058,721.80, 1,588,082.70 and 921,864.20 is: 1,382,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,721.80 : 1,588,082.70 = 921,864.20 : x
  2. Step 2: Convert to fraction form
    1,058,721.80/1,588,082.70 = 921,864.20/x
  3. Step 3: Cross multiply
    1,058,721.80x = 1,588,082.70 × 921,864.20
  4. Step 4: Simplify right side
    1,058,721.80x = 1,463,996,587,769.34
  5. Step 5: Solve for x
    x = 1,463,996,587,769.34/1,058,721.80
  6. Step 6: Final answer
    x = 1,382,796.30

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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.