Home / 849,813.32-1,172,810.95-487,270.92

Finding the Fourth Proportional to 849,813.32, 1,172,810.95 and 487,270.92

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Solution

The fourth proportional to 849,813.32, 1,172,810.95 and 487,270.92 is: 672,473.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,813.32 : 1,172,810.95 = 487,270.92 : x
  2. Step 2: Convert to fraction form
    849,813.32/1,172,810.95 = 487,270.92/x
  3. Step 3: Cross multiply
    849,813.32x = 1,172,810.95 × 487,270.92
  4. Step 4: Simplify right side
    849,813.32x = 571,476,663,876.85
  5. Step 5: Solve for x
    x = 571,476,663,876.85/849,813.32
  6. Step 6: Final answer
    x = 672,473.18

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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.