Home / 879,459.80-1,319,627.10-346,998.20

Finding the Fourth Proportional to 879,459.80, 1,319,627.10 and 346,998.20

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Solution

The fourth proportional to 879,459.80, 1,319,627.10 and 346,998.20 is: 520,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,459.80 : 1,319,627.10 = 346,998.20 : x
  2. Step 2: Convert to fraction form
    879,459.80/1,319,627.10 = 346,998.20/x
  3. Step 3: Cross multiply
    879,459.80x = 1,319,627.10 × 346,998.20
  4. Step 4: Simplify right side
    879,459.80x = 457,908,228,371.22
  5. Step 5: Solve for x
    x = 457,908,228,371.22/879,459.80
  6. Step 6: Final answer
    x = 520,669.88

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Double scale
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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.