Home / 643,332.65-887,828.04-356,852.66

Finding the Fourth Proportional to 643,332.65, 887,828.04 and 356,852.66

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Solution

The fourth proportional to 643,332.65, 887,828.04 and 356,852.66 is: 492,472.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,332.65 : 887,828.04 = 356,852.66 : x
  2. Step 2: Convert to fraction form
    643,332.65/887,828.04 = 356,852.66/x
  3. Step 3: Cross multiply
    643,332.65x = 887,828.04 × 356,852.66
  4. Step 4: Simplify right side
    643,332.65x = 316,823,793,257.45
  5. Step 5: Solve for x
    x = 316,823,793,257.45/643,332.65
  6. Step 6: Final answer
    x = 492,472.74

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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.