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Finding the Fourth Proportional to 704,748.95, 972,554.87 and 418,326.47

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Solution

The fourth proportional to 704,748.95, 972,554.87 and 418,326.47 is: 577,291.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,748.95 : 972,554.87 = 418,326.47 : x
  2. Step 2: Convert to fraction form
    704,748.95/972,554.87 = 418,326.47/x
  3. Step 3: Cross multiply
    704,748.95x = 972,554.87 × 418,326.47
  4. Step 4: Simplify right side
    704,748.95x = 406,845,441,831.45
  5. Step 5: Solve for x
    x = 406,845,441,831.45/704,748.95
  6. Step 6: Final answer
    x = 577,291.31

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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.