Home / 747,485.50-1,031,515.58-407,956.18

Finding the Fourth Proportional to 747,485.50, 1,031,515.58 and 407,956.18

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Solution

The fourth proportional to 747,485.50, 1,031,515.58 and 407,956.18 is: 562,971.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,485.50 : 1,031,515.58 = 407,956.18 : x
  2. Step 2: Convert to fraction form
    747,485.50/1,031,515.58 = 407,956.18/x
  3. Step 3: Cross multiply
    747,485.50x = 1,031,515.58 × 407,956.18
  4. Step 4: Simplify right side
    747,485.50x = 420,813,155,627.28
  5. Step 5: Solve for x
    x = 420,813,155,627.28/747,485.50
  6. Step 6: Final answer
    x = 562,971.66

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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.