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Finding the Fourth Proportional to 684,281.74, 944,270.69 and 378,339.74

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Solution

The fourth proportional to 684,281.74, 944,270.69 and 378,339.74 is: 522,087.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,281.74 : 944,270.69 = 378,339.74 : x
  2. Step 2: Convert to fraction form
    684,281.74/944,270.69 = 378,339.74/x
  3. Step 3: Cross multiply
    684,281.74x = 944,270.69 × 378,339.74
  4. Step 4: Simplify right side
    684,281.74x = 357,255,125,452.52
  5. Step 5: Solve for x
    x = 357,255,125,452.52/684,281.74
  6. Step 6: Final answer
    x = 522,087.77

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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.