Home / 698,689.80-1,048,034.70-486,113.40

Finding the Fourth Proportional to 698,689.80, 1,048,034.70 and 486,113.40

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Solution

The fourth proportional to 698,689.80, 1,048,034.70 and 486,113.40 is: 729,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,689.80 : 1,048,034.70 = 486,113.40 : x
  2. Step 2: Convert to fraction form
    698,689.80/1,048,034.70 = 486,113.40/x
  3. Step 3: Cross multiply
    698,689.80x = 1,048,034.70 × 486,113.40
  4. Step 4: Simplify right side
    698,689.80x = 509,463,711,334.98
  5. Step 5: Solve for x
    x = 509,463,711,334.98/698,689.80
  6. Step 6: Final answer
    x = 729,170.10

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Similar ratio
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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.