Home / 970,108.56-1,338,572.16-540,378

Finding the Fourth Proportional to 970,108.56, 1,338,572.16 and 540,378

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Solution

The fourth proportional to 970,108.56, 1,338,572.16 and 540,378 is: 745,622.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,108.56 : 1,338,572.16 = 540,378 : x
  2. Step 2: Convert to fraction form
    970,108.56/1,338,572.16 = 540,378/x
  3. Step 3: Cross multiply
    970,108.56x = 1,338,572.16 × 540,378
  4. Step 4: Simplify right side
    970,108.56x = 723,334,946,676.48
  5. Step 5: Solve for x
    x = 723,334,946,676.48/970,108.56
  6. Step 6: Final answer
    x = 745,622.68

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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.