Home / 756,443.60-1,133,167.80-490,389.20

Finding the Fourth Proportional to 756,443.60, 1,133,167.80 and 490,389.20

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Solution

The fourth proportional to 756,443.60, 1,133,167.80 and 490,389.20 is: 734,612.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,443.60 : 1,133,167.80 = 490,389.20 : x
  2. Step 2: Convert to fraction form
    756,443.60/1,133,167.80 = 490,389.20/x
  3. Step 3: Cross multiply
    756,443.60x = 1,133,167.80 × 490,389.20
  4. Step 4: Simplify right side
    756,443.60x = 555,693,250,907.76
  5. Step 5: Solve for x
    x = 555,693,250,907.76/756,443.60
  6. Step 6: Final answer
    x = 734,612.93

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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.