Home / 1,268,888.40-1,901,719.80-520,088.40

Finding the Fourth Proportional to 1,268,888.40, 1,901,719.80 and 520,088.40

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Solution

The fourth proportional to 1,268,888.40, 1,901,719.80 and 520,088.40 is: 779,471.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,888.40 : 1,901,719.80 = 520,088.40 : x
  2. Step 2: Convert to fraction form
    1,268,888.40/1,901,719.80 = 520,088.40/x
  3. Step 3: Cross multiply
    1,268,888.40x = 1,901,719.80 × 520,088.40
  4. Step 4: Simplify right side
    1,268,888.40x = 989,062,408,030.32
  5. Step 5: Solve for x
    x = 989,062,408,030.32/1,268,888.40
  6. Step 6: Final answer
    x = 779,471.55

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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.