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Finding the Fourth Proportional to 507,860.18, 700,842.57 and 278,413.29

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Solution

The fourth proportional to 507,860.18, 700,842.57 and 278,413.29 is: 384,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,860.18 : 700,842.57 = 278,413.29 : x
  2. Step 2: Convert to fraction form
    507,860.18/700,842.57 = 278,413.29/x
  3. Step 3: Cross multiply
    507,860.18x = 700,842.57 × 278,413.29
  4. Step 4: Simplify right side
    507,860.18x = 195,123,887,395.86
  5. Step 5: Solve for x
    x = 195,123,887,395.86/507,860.18
  6. Step 6: Final answer
    x = 384,207.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.