Home / 857,870.60-1,285,931.10-502,701.80

Finding the Fourth Proportional to 857,870.60, 1,285,931.10 and 502,701.80

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Solution

The fourth proportional to 857,870.60, 1,285,931.10 and 502,701.80 is: 753,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,870.60 : 1,285,931.10 = 502,701.80 : x
  2. Step 2: Convert to fraction form
    857,870.60/1,285,931.10 = 502,701.80/x
  3. Step 3: Cross multiply
    857,870.60x = 1,285,931.10 × 502,701.80
  4. Step 4: Simplify right side
    857,870.60x = 646,439,878,645.98
  5. Step 5: Solve for x
    x = 646,439,878,645.98/857,870.60
  6. Step 6: Final answer
    x = 753,540.08

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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.