Home / 879,280.80-1,319,358.60-346,819.20

Finding the Fourth Proportional to 879,280.80, 1,319,358.60 and 346,819.20

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Solution

The fourth proportional to 879,280.80, 1,319,358.60 and 346,819.20 is: 520,401.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,280.80 : 1,319,358.60 = 346,819.20 : x
  2. Step 2: Convert to fraction form
    879,280.80/1,319,358.60 = 346,819.20/x
  3. Step 3: Cross multiply
    879,280.80x = 1,319,358.60 × 346,819.20
  4. Step 4: Simplify right side
    879,280.80x = 457,578,894,165.12
  5. Step 5: Solve for x
    x = 457,578,894,165.12/879,280.80
  6. Step 6: Final answer
    x = 520,401.33

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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.