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Finding the Fourth Proportional to 517,980.07, 714,922.77 and 348,115.78

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Solution

The fourth proportional to 517,980.07, 714,922.77 and 348,115.78 is: 480,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,980.07 : 714,922.77 = 348,115.78 : x
  2. Step 2: Convert to fraction form
    517,980.07/714,922.77 = 348,115.78/x
  3. Step 3: Cross multiply
    517,980.07x = 714,922.77 × 348,115.78
  4. Step 4: Simplify right side
    517,980.07x = 248,875,897,718.31
  5. Step 5: Solve for x
    x = 248,875,897,718.31/517,980.07
  6. Step 6: Final answer
    x = 480,473.89

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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.