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Finding the Fourth Proportional to 657,305.94, 907,123.68 and 370,721.46

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Solution

The fourth proportional to 657,305.94, 907,123.68 and 370,721.46 is: 511,619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,305.94 : 907,123.68 = 370,721.46 : x
  2. Step 2: Convert to fraction form
    657,305.94/907,123.68 = 370,721.46/x
  3. Step 3: Cross multiply
    657,305.94x = 907,123.68 × 370,721.46
  4. Step 4: Simplify right side
    657,305.94x = 336,290,215,050.17
  5. Step 5: Solve for x
    x = 336,290,215,050.17/657,305.94
  6. Step 6: Final answer
    x = 511,619.01

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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.