Home / 1,618,694.40-2,428,041.60-778,886.40

Finding the Fourth Proportional to 1,618,694.40, 2,428,041.60 and 778,886.40

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Solution

The fourth proportional to 1,618,694.40, 2,428,041.60 and 778,886.40 is: 1,168,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,694.40 : 2,428,041.60 = 778,886.40 : x
  2. Step 2: Convert to fraction form
    1,618,694.40/2,428,041.60 = 778,886.40/x
  3. Step 3: Cross multiply
    1,618,694.40x = 2,428,041.60 × 778,886.40
  4. Step 4: Simplify right side
    1,618,694.40x = 1,891,168,580,874.24
  5. Step 5: Solve for x
    x = 1,891,168,580,874.24/1,618,694.40
  6. Step 6: Final answer
    x = 1,168,329.60

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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.