Home / 5,280,482.40-7,920,723.60-1,291,394.40

Finding the Fourth Proportional to 5,280,482.40, 7,920,723.60 and 1,291,394.40

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Solution

The fourth proportional to 5,280,482.40, 7,920,723.60 and 1,291,394.40 is: 1,937,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,482.40 : 7,920,723.60 = 1,291,394.40 : x
  2. Step 2: Convert to fraction form
    5,280,482.40/7,920,723.60 = 1,291,394.40/x
  3. Step 3: Cross multiply
    5,280,482.40x = 7,920,723.60 × 1,291,394.40
  4. Step 4: Simplify right side
    5,280,482.40x = 10,228,778,100,987.84
  5. Step 5: Solve for x
    x = 10,228,778,100,987.84/5,280,482.40
  6. Step 6: Final answer
    x = 1,937,091.60

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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.