Home / 698,701.80-1,048,052.70-486,125.40

Finding the Fourth Proportional to 698,701.80, 1,048,052.70 and 486,125.40

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Solution

The fourth proportional to 698,701.80, 1,048,052.70 and 486,125.40 is: 729,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,701.80 : 1,048,052.70 = 486,125.40 : x
  2. Step 2: Convert to fraction form
    698,701.80/1,048,052.70 = 486,125.40/x
  3. Step 3: Cross multiply
    698,701.80x = 1,048,052.70 × 486,125.40
  4. Step 4: Simplify right side
    698,701.80x = 509,485,038,008.58
  5. Step 5: Solve for x
    x = 509,485,038,008.58/698,701.80
  6. Step 6: Final answer
    x = 729,188.10

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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.