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Finding the Fourth Proportional to 783,449.61, 1,175,343.61 and 243,695.62

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Solution

The fourth proportional to 783,449.61, 1,175,343.61 and 243,695.62 is: 365,596.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,449.61 : 1,175,343.61 = 243,695.62 : x
  2. Step 2: Convert to fraction form
    783,449.61/1,175,343.61 = 243,695.62/x
  3. Step 3: Cross multiply
    783,449.61x = 1,175,343.61 × 243,695.62
  4. Step 4: Simplify right side
    783,449.61x = 286,426,083,928.33
  5. Step 5: Solve for x
    x = 286,426,083,928.33/783,449.61
  6. Step 6: Final answer
    x = 365,596.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.