Home / 698,153.70-1,047,230.55-521,006.70

Finding the Fourth Proportional to 698,153.70, 1,047,230.55 and 521,006.70

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Solution

The fourth proportional to 698,153.70, 1,047,230.55 and 521,006.70 is: 781,510.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,153.70 : 1,047,230.55 = 521,006.70 : x
  2. Step 2: Convert to fraction form
    698,153.70/1,047,230.55 = 521,006.70/x
  3. Step 3: Cross multiply
    698,153.70x = 1,047,230.55 × 521,006.70
  4. Step 4: Simplify right side
    698,153.70x = 545,614,132,994.69
  5. Step 5: Solve for x
    x = 545,614,132,994.69/698,153.70
  6. Step 6: Final answer
    x = 781,510.05

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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.