Home / 1,209,006.46-1,668,428.85-665,130.52

Finding the Fourth Proportional to 1,209,006.46, 1,668,428.85 and 665,130.52

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Solution

The fourth proportional to 1,209,006.46, 1,668,428.85 and 665,130.52 is: 917,880.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,006.46 : 1,668,428.85 = 665,130.52 : x
  2. Step 2: Convert to fraction form
    1,209,006.46/1,668,428.85 = 665,130.52/x
  3. Step 3: Cross multiply
    1,209,006.46x = 1,668,428.85 × 665,130.52
  4. Step 4: Simplify right side
    1,209,006.46x = 1,109,722,948,583.50
  5. Step 5: Solve for x
    x = 1,109,722,948,583.50/1,209,006.46
  6. Step 6: Final answer
    x = 917,880.08

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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.