Home / 857,679.34-1,284,895.20-572,510.08

Finding the Fourth Proportional to 857,679.34, 1,284,895.20 and 572,510.08

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Solution

The fourth proportional to 857,679.34, 1,284,895.20 and 572,510.08 is: 857,681.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,679.34 : 1,284,895.20 = 572,510.08 : x
  2. Step 2: Convert to fraction form
    857,679.34/1,284,895.20 = 572,510.08/x
  3. Step 3: Cross multiply
    857,679.34x = 1,284,895.20 × 572,510.08
  4. Step 4: Simplify right side
    857,679.34x = 735,615,453,743.62
  5. Step 5: Solve for x
    x = 735,615,453,743.62/857,679.34
  6. Step 6: Final answer
    x = 857,681.21

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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.