Home / 440,426.89-607,789.71-239,222.89

Finding the Fourth Proportional to 440,426.89, 607,789.71 and 239,222.89

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Solution

The fourth proportional to 440,426.89, 607,789.71 and 239,222.89 is: 330,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,426.89 : 607,789.71 = 239,222.89 : x
  2. Step 2: Convert to fraction form
    440,426.89/607,789.71 = 239,222.89/x
  3. Step 3: Cross multiply
    440,426.89x = 607,789.71 × 239,222.89
  4. Step 4: Simplify right side
    440,426.89x = 145,397,210,938.46
  5. Step 5: Solve for x
    x = 145,397,210,938.46/440,426.89
  6. Step 6: Final answer
    x = 330,127.92

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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.