Home / 1,245,631.15-1,718,970.95-672,671.30

Finding the Fourth Proportional to 1,245,631.15, 1,718,970.95 and 672,671.30

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Solution

The fourth proportional to 1,245,631.15, 1,718,970.95 and 672,671.30 is: 928,286.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,631.15 : 1,718,970.95 = 672,671.30 : x
  2. Step 2: Convert to fraction form
    1,245,631.15/1,718,970.95 = 672,671.30/x
  3. Step 3: Cross multiply
    1,245,631.15x = 1,718,970.95 × 672,671.30
  4. Step 4: Simplify right side
    1,245,631.15x = 1,156,302,423,598.74
  5. Step 5: Solve for x
    x = 1,156,302,423,598.74/1,245,631.15
  6. Step 6: Final answer
    x = 928,286.37

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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.