Home / 912,823.80-1,369,235.70-534,910.20

Finding the Fourth Proportional to 912,823.80, 1,369,235.70 and 534,910.20

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Solution

The fourth proportional to 912,823.80, 1,369,235.70 and 534,910.20 is: 802,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,823.80 : 1,369,235.70 = 534,910.20 : x
  2. Step 2: Convert to fraction form
    912,823.80/1,369,235.70 = 534,910.20/x
  3. Step 3: Cross multiply
    912,823.80x = 1,369,235.70 × 534,910.20
  4. Step 4: Simplify right side
    912,823.80x = 732,418,142,134.14
  5. Step 5: Solve for x
    x = 732,418,142,134.14/912,823.80
  6. Step 6: Final answer
    x = 802,365.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.