Home / 871,004.64-1,305,281.70-692,720.40

Finding the Fourth Proportional to 871,004.64, 1,305,281.70 and 692,720.40

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Solution

The fourth proportional to 871,004.64, 1,305,281.70 and 692,720.40 is: 1,038,106.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,004.64 : 1,305,281.70 = 692,720.40 : x
  2. Step 2: Convert to fraction form
    871,004.64/1,305,281.70 = 692,720.40/x
  3. Step 3: Cross multiply
    871,004.64x = 1,305,281.70 × 692,720.40
  4. Step 4: Simplify right side
    871,004.64x = 904,195,261,336.68
  5. Step 5: Solve for x
    x = 904,195,261,336.68/871,004.64
  6. Step 6: Final answer
    x = 1,038,106.14

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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.