Home / 514,045.08-709,382.10-287,690.58

Finding the Fourth Proportional to 514,045.08, 709,382.10 and 287,690.58

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Solution

The fourth proportional to 514,045.08, 709,382.10 and 287,690.58 is: 397,012.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,045.08 : 709,382.10 = 287,690.58 : x
  2. Step 2: Convert to fraction form
    514,045.08/709,382.10 = 287,690.58/x
  3. Step 3: Cross multiply
    514,045.08x = 709,382.10 × 287,690.58
  4. Step 4: Simplify right side
    514,045.08x = 204,082,547,790.62
  5. Step 5: Solve for x
    x = 204,082,547,790.62/514,045.08
  6. Step 6: Final answer
    x = 397,012.94

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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.