Home / 698,693.80-1,048,040.70-486,117.40

Finding the Fourth Proportional to 698,693.80, 1,048,040.70 and 486,117.40

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Solution

The fourth proportional to 698,693.80, 1,048,040.70 and 486,117.40 is: 729,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,693.80 : 1,048,040.70 = 486,117.40 : x
  2. Step 2: Convert to fraction form
    698,693.80/1,048,040.70 = 486,117.40/x
  3. Step 3: Cross multiply
    698,693.80x = 1,048,040.70 × 486,117.40
  4. Step 4: Simplify right side
    698,693.80x = 509,470,820,178.18
  5. Step 5: Solve for x
    x = 509,470,820,178.18/698,693.80
  6. Step 6: Final answer
    x = 729,176.10

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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.