Home / 501,518.20-692,082.61-280,752.40

Finding the Fourth Proportional to 501,518.20, 692,082.61 and 280,752.40

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Solution

The fourth proportional to 501,518.20, 692,082.61 and 280,752.40 is: 387,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,518.20 : 692,082.61 = 280,752.40 : x
  2. Step 2: Convert to fraction form
    501,518.20/692,082.61 = 280,752.40/x
  3. Step 3: Cross multiply
    501,518.20x = 692,082.61 × 280,752.40
  4. Step 4: Simplify right side
    501,518.20x = 194,303,853,755.76
  5. Step 5: Solve for x
    x = 194,303,853,755.76/501,518.20
  6. Step 6: Final answer
    x = 387,431.31

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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.