Home / 671,146.10-926,181.75-369,340.10

Finding the Fourth Proportional to 671,146.10, 926,181.75 and 369,340.10

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Solution

The fourth proportional to 671,146.10, 926,181.75 and 369,340.10 is: 509,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,146.10 : 926,181.75 = 369,340.10 : x
  2. Step 2: Convert to fraction form
    671,146.10/926,181.75 = 369,340.10/x
  3. Step 3: Cross multiply
    671,146.10x = 926,181.75 × 369,340.10
  4. Step 4: Simplify right side
    671,146.10x = 342,076,060,163.18
  5. Step 5: Solve for x
    x = 342,076,060,163.18/671,146.10
  6. Step 6: Final answer
    x = 509,689.41

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Double scale
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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.