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Finding the Fourth Proportional to 657,262.76, 907,064.62 and 370,678.28

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Solution

The fourth proportional to 657,262.76, 907,064.62 and 370,678.28 is: 511,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,262.76 : 907,064.62 = 370,678.28 : x
  2. Step 2: Convert to fraction form
    657,262.76/907,064.62 = 370,678.28/x
  3. Step 3: Cross multiply
    657,262.76x = 907,064.62 × 370,678.28
  4. Step 4: Simplify right side
    657,262.76x = 336,229,153,190.45
  5. Step 5: Solve for x
    x = 336,229,153,190.45/657,262.76
  6. Step 6: Final answer
    x = 511,559.72

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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.