Home / 781,300.40-1,168,840.20-677,274.80

Finding the Fourth Proportional to 781,300.40, 1,168,840.20 and 677,274.80

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Solution

The fourth proportional to 781,300.40, 1,168,840.20 and 677,274.80 is: 1,013,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,300.40 : 1,168,840.20 = 677,274.80 : x
  2. Step 2: Convert to fraction form
    781,300.40/1,168,840.20 = 677,274.80/x
  3. Step 3: Cross multiply
    781,300.40x = 1,168,840.20 × 677,274.80
  4. Step 4: Simplify right side
    781,300.40x = 791,626,012,686.96
  5. Step 5: Solve for x
    x = 791,626,012,686.96/781,300.40
  6. Step 6: Final answer
    x = 1,013,215.93

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1.5x scale

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.