Home / 688,281.28-949,795.86-382,377.40

Finding the Fourth Proportional to 688,281.28, 949,795.86 and 382,377.40

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Solution

The fourth proportional to 688,281.28, 949,795.86 and 382,377.40 is: 527,662.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,281.28 : 949,795.86 = 382,377.40 : x
  2. Step 2: Convert to fraction form
    688,281.28/949,795.86 = 382,377.40/x
  3. Step 3: Cross multiply
    688,281.28x = 949,795.86 × 382,377.40
  4. Step 4: Simplify right side
    688,281.28x = 363,180,471,477.56
  5. Step 5: Solve for x
    x = 363,180,471,477.56/688,281.28
  6. Step 6: Final answer
    x = 527,662.86

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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.