Home / 421,528.17-631,191.68-276,979.50

Finding the Fourth Proportional to 421,528.17, 631,191.68 and 276,979.50

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Solution

The fourth proportional to 421,528.17, 631,191.68 and 276,979.50 is: 414,746.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,528.17 : 631,191.68 = 276,979.50 : x
  2. Step 2: Convert to fraction form
    421,528.17/631,191.68 = 276,979.50/x
  3. Step 3: Cross multiply
    421,528.17x = 631,191.68 × 276,979.50
  4. Step 4: Simplify right side
    421,528.17x = 174,827,154,545.66
  5. Step 5: Solve for x
    x = 174,827,154,545.66/421,528.17
  6. Step 6: Final answer
    x = 414,746.08

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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.