Home / 838,740.60-1,157,510.64-631,638.12

Finding the Fourth Proportional to 838,740.60, 1,157,510.64 and 631,638.12

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Solution

The fourth proportional to 838,740.60, 1,157,510.64 and 631,638.12 is: 871,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,740.60 : 1,157,510.64 = 631,638.12 : x
  2. Step 2: Convert to fraction form
    838,740.60/1,157,510.64 = 631,638.12/x
  3. Step 3: Cross multiply
    838,740.60x = 1,157,510.64 × 631,638.12
  4. Step 4: Simplify right side
    838,740.60x = 731,127,844,529.60
  5. Step 5: Solve for x
    x = 731,127,844,529.60/838,740.60
  6. Step 6: Final answer
    x = 871,697.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.