Home / 440,419.38-607,779.35-239,215.38

Finding the Fourth Proportional to 440,419.38, 607,779.35 and 239,215.38

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Solution

The fourth proportional to 440,419.38, 607,779.35 and 239,215.38 is: 330,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,419.38 : 607,779.35 = 239,215.38 : x
  2. Step 2: Convert to fraction form
    440,419.38/607,779.35 = 239,215.38/x
  3. Step 3: Cross multiply
    440,419.38x = 607,779.35 × 239,215.38
  4. Step 4: Simplify right side
    440,419.38x = 145,390,168,166.40
  5. Step 5: Solve for x
    x = 145,390,168,166.40/440,419.38
  6. Step 6: Final answer
    x = 330,117.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.