Home / 857,211.74-1,285,727.40-351,826.16

Finding the Fourth Proportional to 857,211.74, 1,285,727.40 and 351,826.16

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Solution

The fourth proportional to 857,211.74, 1,285,727.40 and 351,826.16 is: 527,702.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,211.74 : 1,285,727.40 = 351,826.16 : x
  2. Step 2: Convert to fraction form
    857,211.74/1,285,727.40 = 351,826.16/x
  3. Step 3: Cross multiply
    857,211.74x = 1,285,727.40 × 351,826.16
  4. Step 4: Simplify right side
    857,211.74x = 452,352,533,948.78
  5. Step 5: Solve for x
    x = 452,352,533,948.78/857,211.74
  6. Step 6: Final answer
    x = 527,702.22

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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.