Home / 747,089.20-1,030,981.78-407,557.44

Finding the Fourth Proportional to 747,089.20, 1,030,981.78 and 407,557.44

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Solution

The fourth proportional to 747,089.20, 1,030,981.78 and 407,557.44 is: 562,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,089.20 : 1,030,981.78 = 407,557.44 : x
  2. Step 2: Convert to fraction form
    747,089.20/1,030,981.78 = 407,557.44/x
  3. Step 3: Cross multiply
    747,089.20x = 1,030,981.78 × 407,557.44
  4. Step 4: Simplify right side
    747,089.20x = 420,184,294,943.44
  5. Step 5: Solve for x
    x = 420,184,294,943.44/747,089.20
  6. Step 6: Final answer
    x = 562,428.55

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1.5x scale

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.