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Finding the Fourth Proportional to 672,206.25, 927,689.58 and 370,400.25

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Solution

The fourth proportional to 672,206.25, 927,689.58 and 370,400.25 is: 511,177.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,206.25 : 927,689.58 = 370,400.25 : x
  2. Step 2: Convert to fraction form
    672,206.25/927,689.58 = 370,400.25/x
  3. Step 3: Cross multiply
    672,206.25x = 927,689.58 × 370,400.25
  4. Step 4: Simplify right side
    672,206.25x = 343,616,452,354.40
  5. Step 5: Solve for x
    x = 343,616,452,354.40/672,206.25
  6. Step 6: Final answer
    x = 511,177.12

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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.