Home / 1,490,290.90-2,234,182.47-648,208.42

Finding the Fourth Proportional to 1,490,290.90, 2,234,182.47 and 648,208.42

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Solution

The fourth proportional to 1,490,290.90, 2,234,182.47 and 648,208.42 is: 971,767.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,290.90 : 2,234,182.47 = 648,208.42 : x
  2. Step 2: Convert to fraction form
    1,490,290.90/2,234,182.47 = 648,208.42/x
  3. Step 3: Cross multiply
    1,490,290.90x = 2,234,182.47 × 648,208.42
  4. Step 4: Simplify right side
    1,490,290.90x = 1,448,215,888,870.40
  5. Step 5: Solve for x
    x = 1,448,215,888,870.40/1,490,290.90
  6. Step 6: Final answer
    x = 971,767.25

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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.