Home / 907,638.80-1,361,458.20-571,715.60

Finding the Fourth Proportional to 907,638.80, 1,361,458.20 and 571,715.60

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Solution

The fourth proportional to 907,638.80, 1,361,458.20 and 571,715.60 is: 857,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,638.80 : 1,361,458.20 = 571,715.60 : x
  2. Step 2: Convert to fraction form
    907,638.80/1,361,458.20 = 571,715.60/x
  3. Step 3: Cross multiply
    907,638.80x = 1,361,458.20 × 571,715.60
  4. Step 4: Simplify right side
    907,638.80x = 778,366,891,687.92
  5. Step 5: Solve for x
    x = 778,366,891,687.92/907,638.80
  6. Step 6: Final answer
    x = 857,573.40

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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.