Home / 1,389,302.80-2,084,011.80-442,646.80

Finding the Fourth Proportional to 1,389,302.80, 2,084,011.80 and 442,646.80

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Solution

The fourth proportional to 1,389,302.80, 2,084,011.80 and 442,646.80 is: 663,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,302.80 : 2,084,011.80 = 442,646.80 : x
  2. Step 2: Convert to fraction form
    1,389,302.80/2,084,011.80 = 442,646.80/x
  3. Step 3: Cross multiply
    1,389,302.80x = 2,084,011.80 × 442,646.80
  4. Step 4: Simplify right side
    1,389,302.80x = 922,481,154,432.24
  5. Step 5: Solve for x
    x = 922,481,154,432.24/1,389,302.80
  6. Step 6: Final answer
    x = 663,988.55

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1.5x scale

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.