Home / 1,259,696.80-1,888,335.60-417,815.20

Finding the Fourth Proportional to 1,259,696.80, 1,888,335.60 and 417,815.20

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Solution

The fourth proportional to 1,259,696.80, 1,888,335.60 and 417,815.20 is: 626,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,696.80 : 1,888,335.60 = 417,815.20 : x
  2. Step 2: Convert to fraction form
    1,259,696.80/1,888,335.60 = 417,815.20/x
  3. Step 3: Cross multiply
    1,259,696.80x = 1,888,335.60 × 417,815.20
  4. Step 4: Simplify right side
    1,259,696.80x = 788,975,316,381.12
  5. Step 5: Solve for x
    x = 788,975,316,381.12/1,259,696.80
  6. Step 6: Final answer
    x = 626,321.60

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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.