Home / 918,063.20-1,377,289.20-278,314.40

Finding the Fourth Proportional to 918,063.20, 1,377,289.20 and 278,314.40

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Solution

The fourth proportional to 918,063.20, 1,377,289.20 and 278,314.40 is: 417,530.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,063.20 : 1,377,289.20 = 278,314.40 : x
  2. Step 2: Convert to fraction form
    918,063.20/1,377,289.20 = 278,314.40/x
  3. Step 3: Cross multiply
    918,063.20x = 1,377,289.20 × 278,314.40
  4. Step 4: Simplify right side
    918,063.20x = 383,319,417,324.48
  5. Step 5: Solve for x
    x = 383,319,417,324.48/918,063.20
  6. Step 6: Final answer
    x = 417,530.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.