Home / 889,862.08-1,228,014.40-487,454.08

Finding the Fourth Proportional to 889,862.08, 1,228,014.40 and 487,454.08

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Solution

The fourth proportional to 889,862.08, 1,228,014.40 and 487,454.08 is: 672,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,862.08 : 1,228,014.40 = 487,454.08 : x
  2. Step 2: Convert to fraction form
    889,862.08/1,228,014.40 = 487,454.08/x
  3. Step 3: Cross multiply
    889,862.08x = 1,228,014.40 × 487,454.08
  4. Step 4: Simplify right side
    889,862.08x = 598,600,629,578.75
  5. Step 5: Solve for x
    x = 598,600,629,578.75/889,862.08
  6. Step 6: Final answer
    x = 672,689.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.