Home / 1,209,390.04-1,668,916.41-665,474.94

Finding the Fourth Proportional to 1,209,390.04, 1,668,916.41 and 665,474.94

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Solution

The fourth proportional to 1,209,390.04, 1,668,916.41 and 665,474.94 is: 918,332.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,390.04 : 1,668,916.41 = 665,474.94 : x
  2. Step 2: Convert to fraction form
    1,209,390.04/1,668,916.41 = 665,474.94/x
  3. Step 3: Cross multiply
    1,209,390.04x = 1,668,916.41 × 665,474.94
  4. Step 4: Simplify right side
    1,209,390.04x = 1,110,622,045,314.23
  5. Step 5: Solve for x
    x = 1,110,622,045,314.23/1,209,390.04
  6. Step 6: Final answer
    x = 918,332.39

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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.