Home / 400,925.43-553,277.05-239,780.45

Finding the Fourth Proportional to 400,925.43, 553,277.05 and 239,780.45

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Solution

The fourth proportional to 400,925.43, 553,277.05 and 239,780.45 is: 330,897.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,925.43 : 553,277.05 = 239,780.45 : x
  2. Step 2: Convert to fraction form
    400,925.43/553,277.05 = 239,780.45/x
  3. Step 3: Cross multiply
    400,925.43x = 553,277.05 × 239,780.45
  4. Step 4: Simplify right side
    400,925.43x = 132,665,020,807.41
  5. Step 5: Solve for x
    x = 132,665,020,807.41/400,925.43
  6. Step 6: Final answer
    x = 330,897.00

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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.