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Finding the Fourth Proportional to 702,948.52, 970,067.21 and 380,658.62

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Solution

The fourth proportional to 702,948.52, 970,067.21 and 380,658.62 is: 525,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,948.52 : 970,067.21 = 380,658.62 : x
  2. Step 2: Convert to fraction form
    702,948.52/970,067.21 = 380,658.62/x
  3. Step 3: Cross multiply
    702,948.52x = 970,067.21 × 380,658.62
  4. Step 4: Simplify right side
    702,948.52x = 369,264,445,465.85
  5. Step 5: Solve for x
    x = 369,264,445,465.85/702,948.52
  6. Step 6: Final answer
    x = 525,307.95

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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.