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Finding the Fourth Proportional to 670,538.88, 925,319.52 and 368,730.72

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Solution

The fourth proportional to 670,538.88, 925,319.52 and 368,730.72 is: 508,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,538.88 : 925,319.52 = 368,730.72 : x
  2. Step 2: Convert to fraction form
    670,538.88/925,319.52 = 368,730.72/x
  3. Step 3: Cross multiply
    670,538.88x = 925,319.52 × 368,730.72
  4. Step 4: Simplify right side
    670,538.88x = 341,193,732,839.65
  5. Step 5: Solve for x
    x = 341,193,732,839.65/670,538.88
  6. Step 6: Final answer
    x = 508,835.12

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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.