Home / 1,038,493.70-1,557,740.55-478,621.70

Finding the Fourth Proportional to 1,038,493.70, 1,557,740.55 and 478,621.70

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Solution

The fourth proportional to 1,038,493.70, 1,557,740.55 and 478,621.70 is: 717,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,493.70 : 1,557,740.55 = 478,621.70 : x
  2. Step 2: Convert to fraction form
    1,038,493.70/1,557,740.55 = 478,621.70/x
  3. Step 3: Cross multiply
    1,038,493.70x = 1,557,740.55 × 478,621.70
  4. Step 4: Simplify right side
    1,038,493.70x = 745,568,430,199.94
  5. Step 5: Solve for x
    x = 745,568,430,199.94/1,038,493.70
  6. Step 6: Final answer
    x = 717,932.55

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1.5x scale

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.