Home / 763,433.10-1,145,149.65-698,114.70

Finding the Fourth Proportional to 763,433.10, 1,145,149.65 and 698,114.70

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Solution

The fourth proportional to 763,433.10, 1,145,149.65 and 698,114.70 is: 1,047,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,433.10 : 1,145,149.65 = 698,114.70 : x
  2. Step 2: Convert to fraction form
    763,433.10/1,145,149.65 = 698,114.70/x
  3. Step 3: Cross multiply
    763,433.10x = 1,145,149.65 × 698,114.70
  4. Step 4: Simplify right side
    763,433.10x = 799,445,804,364.86
  5. Step 5: Solve for x
    x = 799,445,804,364.86/763,433.10
  6. Step 6: Final answer
    x = 1,047,172.05

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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.