Home / 389,426.10-584,139.15-265,010.10

Finding the Fourth Proportional to 389,426.10, 584,139.15 and 265,010.10

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Solution

The fourth proportional to 389,426.10, 584,139.15 and 265,010.10 is: 397,515.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,426.10 : 584,139.15 = 265,010.10 : x
  2. Step 2: Convert to fraction form
    389,426.10/584,139.15 = 265,010.10/x
  3. Step 3: Cross multiply
    389,426.10x = 584,139.15 × 265,010.10
  4. Step 4: Simplify right side
    389,426.10x = 154,802,774,555.42
  5. Step 5: Solve for x
    x = 154,802,774,555.42/389,426.10
  6. Step 6: Final answer
    x = 397,515.15

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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.