Home / 871,403.20-1,303,605.60-754,374.40

Finding the Fourth Proportional to 871,403.20, 1,303,605.60 and 754,374.40

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Solution

The fourth proportional to 871,403.20, 1,303,605.60 and 754,374.40 is: 1,128,532.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,403.20 : 1,303,605.60 = 754,374.40 : x
  2. Step 2: Convert to fraction form
    871,403.20/1,303,605.60 = 754,374.40/x
  3. Step 3: Cross multiply
    871,403.20x = 1,303,605.60 × 754,374.40
  4. Step 4: Simplify right side
    871,403.20x = 983,406,692,336.64
  5. Step 5: Solve for x
    x = 983,406,692,336.64/871,403.20
  6. Step 6: Final answer
    x = 1,128,532.34

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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.