Home / 822,126.52-1,134,219.63-499,718.98

Finding the Fourth Proportional to 822,126.52, 1,134,219.63 and 499,718.98

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Solution

The fourth proportional to 822,126.52, 1,134,219.63 and 499,718.98 is: 689,420.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,126.52 : 1,134,219.63 = 499,718.98 : x
  2. Step 2: Convert to fraction form
    822,126.52/1,134,219.63 = 499,718.98/x
  3. Step 3: Cross multiply
    822,126.52x = 1,134,219.63 × 499,718.98
  4. Step 4: Simplify right side
    822,126.52x = 566,791,076,599.58
  5. Step 5: Solve for x
    x = 566,791,076,599.58/822,126.52
  6. Step 6: Final answer
    x = 689,420.74

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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.