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Finding the Fourth Proportional to 671,146.91, 926,182.87 and 369,340.91

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Solution

The fourth proportional to 671,146.91, 926,182.87 and 369,340.91 is: 509,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,146.91 : 926,182.87 = 369,340.91 : x
  2. Step 2: Convert to fraction form
    671,146.91/926,182.87 = 369,340.91/x
  3. Step 3: Cross multiply
    671,146.91x = 926,182.87 × 369,340.91
  4. Step 4: Simplify right side
    671,146.91x = 342,077,224,032.21
  5. Step 5: Solve for x
    x = 342,077,224,032.21/671,146.91
  6. Step 6: Final answer
    x = 509,690.53

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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.