Home / 917,117.30-1,374,509.55-816,806.90

Finding the Fourth Proportional to 917,117.30, 1,374,509.55 and 816,806.90

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Solution

The fourth proportional to 917,117.30, 1,374,509.55 and 816,806.90 is: 1,224,171.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,117.30 : 1,374,509.55 = 816,806.90 : x
  2. Step 2: Convert to fraction form
    917,117.30/1,374,509.55 = 816,806.90/x
  3. Step 3: Cross multiply
    917,117.30x = 1,374,509.55 × 816,806.90
  4. Step 4: Simplify right side
    917,117.30x = 1,122,708,884,555.90
  5. Step 5: Solve for x
    x = 1,122,708,884,555.90/917,117.30
  6. Step 6: Final answer
    x = 1,224,171.53

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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.