Home / 926,847.29-1,390,420.94-287,000.65

Finding the Fourth Proportional to 926,847.29, 1,390,420.94 and 287,000.65

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Solution

The fourth proportional to 926,847.29, 1,390,420.94 and 287,000.65 is: 430,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,847.29 : 1,390,420.94 = 287,000.65 : x
  2. Step 2: Convert to fraction form
    926,847.29/1,390,420.94 = 287,000.65/x
  3. Step 3: Cross multiply
    926,847.29x = 1,390,420.94 × 287,000.65
  4. Step 4: Simplify right side
    926,847.29x = 399,051,713,553.61
  5. Step 5: Solve for x
    x = 399,051,713,553.61/926,847.29
  6. Step 6: Final answer
    x = 430,547.42

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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.