Home / 958,784.18-1,438,725.78-390,060.32

Finding the Fourth Proportional to 958,784.18, 1,438,725.78 and 390,060.32

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Solution

The fourth proportional to 958,784.18, 1,438,725.78 and 390,060.32 is: 585,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,784.18 : 1,438,725.78 = 390,060.32 : x
  2. Step 2: Convert to fraction form
    958,784.18/1,438,725.78 = 390,060.32/x
  3. Step 3: Cross multiply
    958,784.18x = 1,438,725.78 × 390,060.32
  4. Step 4: Simplify right side
    958,784.18x = 561,189,838,139.05
  5. Step 5: Solve for x
    x = 561,189,838,139.05/958,784.18
  6. Step 6: Final answer
    x = 585,314.04

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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.