Home / 1,290,442.05-1,931,877.90-904,853.88

Finding the Fourth Proportional to 1,290,442.05, 1,931,877.90 and 904,853.88

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Solution

The fourth proportional to 1,290,442.05, 1,931,877.90 and 904,853.88 is: 1,354,626.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,442.05 : 1,931,877.90 = 904,853.88 : x
  2. Step 2: Convert to fraction form
    1,290,442.05/1,931,877.90 = 904,853.88/x
  3. Step 3: Cross multiply
    1,290,442.05x = 1,931,877.90 × 904,853.88
  4. Step 4: Simplify right side
    1,290,442.05x = 1,748,067,213,501.25
  5. Step 5: Solve for x
    x = 1,748,067,213,501.25/1,290,442.05
  6. Step 6: Final answer
    x = 1,354,626.67

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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.