Home / 489,925.04-676,129.80-272,158.57

Finding the Fourth Proportional to 489,925.04, 676,129.80 and 272,158.57

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Solution

The fourth proportional to 489,925.04, 676,129.80 and 272,158.57 is: 375,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,925.04 : 676,129.80 = 272,158.57 : x
  2. Step 2: Convert to fraction form
    489,925.04/676,129.80 = 272,158.57/x
  3. Step 3: Cross multiply
    489,925.04x = 676,129.80 × 272,158.57
  4. Step 4: Simplify right side
    489,925.04x = 184,014,514,760.94
  5. Step 5: Solve for x
    x = 184,014,514,760.94/489,925.04
  6. Step 6: Final answer
    x = 375,597.28

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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.