Home / 772,430.10-1,158,645.15-740,937.30

Finding the Fourth Proportional to 772,430.10, 1,158,645.15 and 740,937.30

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Solution

The fourth proportional to 772,430.10, 1,158,645.15 and 740,937.30 is: 1,111,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,430.10 : 1,158,645.15 = 740,937.30 : x
  2. Step 2: Convert to fraction form
    772,430.10/1,158,645.15 = 740,937.30/x
  3. Step 3: Cross multiply
    772,430.10x = 1,158,645.15 × 740,937.30
  4. Step 4: Simplify right side
    772,430.10x = 858,483,409,099.10
  5. Step 5: Solve for x
    x = 858,483,409,099.10/772,430.10
  6. Step 6: Final answer
    x = 1,111,405.95

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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.