Home / 628,931.20-941,323.20-487,926.40

Finding the Fourth Proportional to 628,931.20, 941,323.20 and 487,926.40

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Solution

The fourth proportional to 628,931.20, 941,323.20 and 487,926.40 is: 730,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,931.20 : 941,323.20 = 487,926.40 : x
  2. Step 2: Convert to fraction form
    628,931.20/941,323.20 = 487,926.40/x
  3. Step 3: Cross multiply
    628,931.20x = 941,323.20 × 487,926.40
  4. Step 4: Simplify right side
    628,931.20x = 459,296,440,212.48
  5. Step 5: Solve for x
    x = 459,296,440,212.48/628,931.20
  6. Step 6: Final answer
    x = 730,280.90

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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.