Home / 901,207.71-1,243,655.57-487,734.86

Finding the Fourth Proportional to 901,207.71, 1,243,655.57 and 487,734.86

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Solution

The fourth proportional to 901,207.71, 1,243,655.57 and 487,734.86 is: 673,068.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,207.71 : 1,243,655.57 = 487,734.86 : x
  2. Step 2: Convert to fraction form
    901,207.71/1,243,655.57 = 487,734.86/x
  3. Step 3: Cross multiply
    901,207.71x = 1,243,655.57 × 487,734.86
  4. Step 4: Simplify right side
    901,207.71x = 606,574,166,665.22
  5. Step 5: Solve for x
    x = 606,574,166,665.22/901,207.71
  6. Step 6: Final answer
    x = 673,068.11

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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.