Home / 864,009.60-1,294,264.80-489,595.20

Finding the Fourth Proportional to 864,009.60, 1,294,264.80 and 489,595.20

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Solution

The fourth proportional to 864,009.60, 1,294,264.80 and 489,595.20 is: 733,401.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,009.60 : 1,294,264.80 = 489,595.20 : x
  2. Step 2: Convert to fraction form
    864,009.60/1,294,264.80 = 489,595.20/x
  3. Step 3: Cross multiply
    864,009.60x = 1,294,264.80 × 489,595.20
  4. Step 4: Simplify right side
    864,009.60x = 633,665,833,608.96
  5. Step 5: Solve for x
    x = 633,665,833,608.96/864,009.60
  6. Step 6: Final answer
    x = 733,401.38

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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.