Home / 709,510.80-1,064,266.20-260,082.30

Finding the Fourth Proportional to 709,510.80, 1,064,266.20 and 260,082.30

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Solution

The fourth proportional to 709,510.80, 1,064,266.20 and 260,082.30 is: 390,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,510.80 : 1,064,266.20 = 260,082.30 : x
  2. Step 2: Convert to fraction form
    709,510.80/1,064,266.20 = 260,082.30/x
  3. Step 3: Cross multiply
    709,510.80x = 1,064,266.20 × 260,082.30
  4. Step 4: Simplify right side
    709,510.80x = 276,796,801,108.26
  5. Step 5: Solve for x
    x = 276,796,801,108.26/709,510.80
  6. Step 6: Final answer
    x = 390,123.45

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Double scale
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Similar ratio
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1.5x scale

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.