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Finding the Fourth Proportional to 507,904.08, 700,915.49 and 278,482.29

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Solution

The fourth proportional to 507,904.08, 700,915.49 and 278,482.29 is: 384,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,904.08 : 700,915.49 = 278,482.29 : x
  2. Step 2: Convert to fraction form
    507,904.08/700,915.49 = 278,482.29/x
  3. Step 3: Cross multiply
    507,904.08x = 700,915.49 × 278,482.29
  4. Step 4: Simplify right side
    507,904.08x = 195,192,550,751.67
  5. Step 5: Solve for x
    x = 195,192,550,751.67/507,904.08
  6. Step 6: Final answer
    x = 384,309.87

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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.