Home / 1,185,567.08-1,636,082.38-641,702.72

Finding the Fourth Proportional to 1,185,567.08, 1,636,082.38 and 641,702.72

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Solution

The fourth proportional to 1,185,567.08, 1,636,082.38 and 641,702.72 is: 885,549.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,567.08 : 1,636,082.38 = 641,702.72 : x
  2. Step 2: Convert to fraction form
    1,185,567.08/1,636,082.38 = 641,702.72/x
  3. Step 3: Cross multiply
    1,185,567.08x = 1,636,082.38 × 641,702.72
  4. Step 4: Simplify right side
    1,185,567.08x = 1,049,878,513,390.07
  5. Step 5: Solve for x
    x = 1,049,878,513,390.07/1,185,567.08
  6. Step 6: Final answer
    x = 885,549.65

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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.