Home / 859,835.28-1,186,564.08-477,854.40

Finding the Fourth Proportional to 859,835.28, 1,186,564.08 and 477,854.40

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Solution

The fourth proportional to 859,835.28, 1,186,564.08 and 477,854.40 is: 659,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,835.28 : 1,186,564.08 = 477,854.40 : x
  2. Step 2: Convert to fraction form
    859,835.28/1,186,564.08 = 477,854.40/x
  3. Step 3: Cross multiply
    859,835.28x = 1,186,564.08 × 477,854.40
  4. Step 4: Simplify right side
    859,835.28x = 567,004,866,509.95
  5. Step 5: Solve for x
    x = 567,004,866,509.95/859,835.28
  6. Step 6: Final answer
    x = 659,434.29

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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.