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Finding the Fourth Proportional to 670,730.47, 925,607.38 and 384,251.69

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Solution

The fourth proportional to 670,730.47, 925,607.38 and 384,251.69 is: 530,266.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,730.47 : 925,607.38 = 384,251.69 : x
  2. Step 2: Convert to fraction form
    670,730.47/925,607.38 = 384,251.69/x
  3. Step 3: Cross multiply
    670,730.47x = 925,607.38 × 384,251.69
  4. Step 4: Simplify right side
    670,730.47x = 355,666,200,041.47
  5. Step 5: Solve for x
    x = 355,666,200,041.47/670,730.47
  6. Step 6: Final answer
    x = 530,266.95

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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.