Home / 879,278.20-1,213,411.62-476,870.20

Finding the Fourth Proportional to 879,278.20, 1,213,411.62 and 476,870.20

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Solution

The fourth proportional to 879,278.20, 1,213,411.62 and 476,870.20 is: 658,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,278.20 : 1,213,411.62 = 476,870.20 : x
  2. Step 2: Convert to fraction form
    879,278.20/1,213,411.62 = 476,870.20/x
  3. Step 3: Cross multiply
    879,278.20x = 1,213,411.62 × 476,870.20
  4. Step 4: Simplify right side
    879,278.20x = 578,639,841,911.72
  5. Step 5: Solve for x
    x = 578,639,841,911.72/879,278.20
  6. Step 6: Final answer
    x = 658,085.05

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Double scale
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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.