Home / 993,090-1,370,452.68-540,373.20

Finding the Fourth Proportional to 993,090, 1,370,452.68 and 540,373.20

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Solution

The fourth proportional to 993,090, 1,370,452.68 and 540,373.20 is: 745,708.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,090 : 1,370,452.68 = 540,373.20 : x
  2. Step 2: Convert to fraction form
    993,090/1,370,452.68 = 540,373.20/x
  3. Step 3: Cross multiply
    993,090x = 1,370,452.68 × 540,373.20
  4. Step 4: Simplify right side
    993,090x = 740,555,900,140.18
  5. Step 5: Solve for x
    x = 740,555,900,140.18/993,090
  6. Step 6: Final answer
    x = 745,708.75

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1.5x scale

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.