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Finding the Fourth Proportional to 564,999.12, 779,373.09 and 338,513.40

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Solution

The fourth proportional to 564,999.12, 779,373.09 and 338,513.40 is: 466,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,999.12 : 779,373.09 = 338,513.40 : x
  2. Step 2: Convert to fraction form
    564,999.12/779,373.09 = 338,513.40/x
  3. Step 3: Cross multiply
    564,999.12x = 779,373.09 × 338,513.40
  4. Step 4: Simplify right side
    564,999.12x = 263,828,234,564.41
  5. Step 5: Solve for x
    x = 263,828,234,564.41/564,999.12
  6. Step 6: Final answer
    x = 466,953.35

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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.