Home / 487,632.84-731,739.96-217,740.12

Finding the Fourth Proportional to 487,632.84, 731,739.96 and 217,740.12

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Solution

The fourth proportional to 487,632.84, 731,739.96 and 217,740.12 is: 326,739.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,632.84 : 731,739.96 = 217,740.12 : x
  2. Step 2: Convert to fraction form
    487,632.84/731,739.96 = 217,740.12/x
  3. Step 3: Cross multiply
    487,632.84x = 731,739.96 × 217,740.12
  4. Step 4: Simplify right side
    487,632.84x = 159,329,146,699.20
  5. Step 5: Solve for x
    x = 159,329,146,699.20/487,632.84
  6. Step 6: Final answer
    x = 326,739.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.