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Finding the Fourth Proportional to 601,319.86, 829,506.78 and 371,803.78

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Solution

The fourth proportional to 601,319.86, 829,506.78 and 371,803.78 is: 512,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,319.86 : 829,506.78 = 371,803.78 : x
  2. Step 2: Convert to fraction form
    601,319.86/829,506.78 = 371,803.78/x
  3. Step 3: Cross multiply
    601,319.86x = 829,506.78 × 371,803.78
  4. Step 4: Simplify right side
    601,319.86x = 308,413,756,339.63
  5. Step 5: Solve for x
    x = 308,413,756,339.63/601,319.86
  6. Step 6: Final answer
    x = 512,894.68

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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.