Home / 729,417.39-1,006,646.72-407,190.39

Finding the Fourth Proportional to 729,417.39, 1,006,646.72 and 407,190.39

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Solution

The fourth proportional to 729,417.39, 1,006,646.72 and 407,190.39 is: 561,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,417.39 : 1,006,646.72 = 407,190.39 : x
  2. Step 2: Convert to fraction form
    729,417.39/1,006,646.72 = 407,190.39/x
  3. Step 3: Cross multiply
    729,417.39x = 1,006,646.72 × 407,190.39
  4. Step 4: Simplify right side
    729,417.39x = 409,896,868,473.07
  5. Step 5: Solve for x
    x = 409,896,868,473.07/729,417.39
  6. Step 6: Final answer
    x = 561,951.05

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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.