Home / 498,928.60-688,506.78-272,574.10

Finding the Fourth Proportional to 498,928.60, 688,506.78 and 272,574.10

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Solution

The fourth proportional to 498,928.60, 688,506.78 and 272,574.10 is: 376,144.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,928.60 : 688,506.78 = 272,574.10 : x
  2. Step 2: Convert to fraction form
    498,928.60/688,506.78 = 272,574.10/x
  3. Step 3: Cross multiply
    498,928.60x = 688,506.78 × 272,574.10
  4. Step 4: Simplify right side
    498,928.60x = 187,669,115,902.40
  5. Step 5: Solve for x
    x = 187,669,115,902.40/498,928.60
  6. Step 6: Final answer
    x = 376,144.23

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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.