Home / 698,666.10-1,047,999.15-486,089.70

Finding the Fourth Proportional to 698,666.10, 1,047,999.15 and 486,089.70

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Solution

The fourth proportional to 698,666.10, 1,047,999.15 and 486,089.70 is: 729,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,666.10 : 1,047,999.15 = 486,089.70 : x
  2. Step 2: Convert to fraction form
    698,666.10/1,047,999.15 = 486,089.70/x
  3. Step 3: Cross multiply
    698,666.10x = 1,047,999.15 × 486,089.70
  4. Step 4: Simplify right side
    698,666.10x = 509,421,592,423.76
  5. Step 5: Solve for x
    x = 509,421,592,423.76/698,666.10
  6. Step 6: Final answer
    x = 729,134.55

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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.