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Finding the Fourth Proportional to 723,581.04, 998,603.18 and 401,394.95

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Solution

The fourth proportional to 723,581.04, 998,603.18 and 401,394.95 is: 553,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,581.04 : 998,603.18 = 401,394.95 : x
  2. Step 2: Convert to fraction form
    723,581.04/998,603.18 = 401,394.95/x
  3. Step 3: Cross multiply
    723,581.04x = 998,603.18 × 401,394.95
  4. Step 4: Simplify right side
    723,581.04x = 400,834,266,505.95
  5. Step 5: Solve for x
    x = 400,834,266,505.95/723,581.04
  6. Step 6: Final answer
    x = 553,959.05

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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.