Home / 1,038,519.70-1,557,779.55-478,647.70

Finding the Fourth Proportional to 1,038,519.70, 1,557,779.55 and 478,647.70

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Solution

The fourth proportional to 1,038,519.70, 1,557,779.55 and 478,647.70 is: 717,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,519.70 : 1,557,779.55 = 478,647.70 : x
  2. Step 2: Convert to fraction form
    1,038,519.70/1,557,779.55 = 478,647.70/x
  3. Step 3: Cross multiply
    1,038,519.70x = 1,557,779.55 × 478,647.70
  4. Step 4: Simplify right side
    1,038,519.70x = 745,627,598,714.54
  5. Step 5: Solve for x
    x = 745,627,598,714.54/1,038,519.70
  6. Step 6: Final answer
    x = 717,971.55

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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.