Home / 789,770.17-1,182,330.19-489,284.57

Finding the Fourth Proportional to 789,770.17, 1,182,330.19 and 489,284.57

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Solution

The fourth proportional to 789,770.17, 1,182,330.19 and 489,284.57 is: 732,486.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,770.17 : 1,182,330.19 = 489,284.57 : x
  2. Step 2: Convert to fraction form
    789,770.17/1,182,330.19 = 489,284.57/x
  3. Step 3: Cross multiply
    789,770.17x = 1,182,330.19 × 489,284.57
  4. Step 4: Simplify right side
    789,770.17x = 578,495,911,477.31
  5. Step 5: Solve for x
    x = 578,495,911,477.31/789,770.17
  6. Step 6: Final answer
    x = 732,486.41

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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.