Home / 857,430.60-1,285,271.10-502,261.80

Finding the Fourth Proportional to 857,430.60, 1,285,271.10 and 502,261.80

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Solution

The fourth proportional to 857,430.60, 1,285,271.10 and 502,261.80 is: 752,880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,430.60 : 1,285,271.10 = 502,261.80 : x
  2. Step 2: Convert to fraction form
    857,430.60/1,285,271.10 = 502,261.80/x
  3. Step 3: Cross multiply
    857,430.60x = 1,285,271.10 × 502,261.80
  4. Step 4: Simplify right side
    857,430.60x = 645,542,576,173.98
  5. Step 5: Solve for x
    x = 645,542,576,173.98/857,430.60
  6. Step 6: Final answer
    x = 752,880.26

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1.5x scale

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.