Home / 907,638.30-1,361,457.45-781,667.10

Finding the Fourth Proportional to 907,638.30, 1,361,457.45 and 781,667.10

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Solution

The fourth proportional to 907,638.30, 1,361,457.45 and 781,667.10 is: 1,172,500.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,638.30 : 1,361,457.45 = 781,667.10 : x
  2. Step 2: Convert to fraction form
    907,638.30/1,361,457.45 = 781,667.10/x
  3. Step 3: Cross multiply
    907,638.30x = 1,361,457.45 × 781,667.10
  4. Step 4: Simplify right side
    907,638.30x = 1,064,206,496,714.89
  5. Step 5: Solve for x
    x = 1,064,206,496,714.89/907,638.30
  6. Step 6: Final answer
    x = 1,172,500.65

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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.