Home / 857,258.61-1,284,987.72-288,442.24

Finding the Fourth Proportional to 857,258.61, 1,284,987.72 and 288,442.24

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Solution

The fourth proportional to 857,258.61, 1,284,987.72 and 288,442.24 is: 432,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,258.61 : 1,284,987.72 = 288,442.24 : x
  2. Step 2: Convert to fraction form
    857,258.61/1,284,987.72 = 288,442.24/x
  3. Step 3: Cross multiply
    857,258.61x = 1,284,987.72 × 288,442.24
  4. Step 4: Simplify right side
    857,258.61x = 370,644,737,001.27
  5. Step 5: Solve for x
    x = 370,644,737,001.27/857,258.61
  6. Step 6: Final answer
    x = 432,360.47

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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.