Home / 849,822.40-1,172,709.12-487,228.80

Finding the Fourth Proportional to 849,822.40, 1,172,709.12 and 487,228.80

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Solution

The fourth proportional to 849,822.40, 1,172,709.12 and 487,228.80 is: 672,349.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,822.40 : 1,172,709.12 = 487,228.80 : x
  2. Step 2: Convert to fraction form
    849,822.40/1,172,709.12 = 487,228.80/x
  3. Step 3: Cross multiply
    849,822.40x = 1,172,709.12 × 487,228.80
  4. Step 4: Simplify right side
    849,822.40x = 571,377,657,286.66
  5. Step 5: Solve for x
    x = 571,377,657,286.66/849,822.40
  6. Step 6: Final answer
    x = 672,349.49

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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.