Home / 489,869.04-676,018.76-275,009.52

Finding the Fourth Proportional to 489,869.04, 676,018.76 and 275,009.52

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Solution

The fourth proportional to 489,869.04, 676,018.76 and 275,009.52 is: 379,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,869.04 : 676,018.76 = 275,009.52 : x
  2. Step 2: Convert to fraction form
    489,869.04/676,018.76 = 275,009.52/x
  3. Step 3: Cross multiply
    489,869.04x = 676,018.76 × 275,009.52
  4. Step 4: Simplify right side
    489,869.04x = 185,911,595,386.12
  5. Step 5: Solve for x
    x = 185,911,595,386.12/489,869.04
  6. Step 6: Final answer
    x = 379,512.85

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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.