Home / 747,630.34-1,121,439.75-186,661.06

Finding the Fourth Proportional to 747,630.34, 1,121,439.75 and 186,661.06

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Solution

The fourth proportional to 747,630.34, 1,121,439.75 and 186,661.06 is: 279,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,630.34 : 1,121,439.75 = 186,661.06 : x
  2. Step 2: Convert to fraction form
    747,630.34/1,121,439.75 = 186,661.06/x
  3. Step 3: Cross multiply
    747,630.34x = 1,121,439.75 × 186,661.06
  4. Step 4: Simplify right side
    747,630.34x = 209,329,132,461.14
  5. Step 5: Solve for x
    x = 209,329,132,461.14/747,630.34
  6. Step 6: Final answer
    x = 279,990.15

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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.