Home / 820,000.02-1,131,599.52-457,423.77

Finding the Fourth Proportional to 820,000.02, 1,131,599.52 and 457,423.77

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Solution

The fourth proportional to 820,000.02, 1,131,599.52 and 457,423.77 is: 631,244.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,000.02 : 1,131,599.52 = 457,423.77 : x
  2. Step 2: Convert to fraction form
    820,000.02/1,131,599.52 = 457,423.77/x
  3. Step 3: Cross multiply
    820,000.02x = 1,131,599.52 × 457,423.77
  4. Step 4: Simplify right side
    820,000.02x = 517,620,518,568.59
  5. Step 5: Solve for x
    x = 517,620,518,568.59/820,000.02
  6. Step 6: Final answer
    x = 631,244.52

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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.