Home / 1,407,416.65-2,108,131.38-830,418.08

Finding the Fourth Proportional to 1,407,416.65, 2,108,131.38 and 830,418.08

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Solution

The fourth proportional to 1,407,416.65, 2,108,131.38 and 830,418.08 is: 1,243,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,416.65 : 2,108,131.38 = 830,418.08 : x
  2. Step 2: Convert to fraction form
    1,407,416.65/2,108,131.38 = 830,418.08/x
  3. Step 3: Cross multiply
    1,407,416.65x = 2,108,131.38 × 830,418.08
  4. Step 4: Simplify right side
    1,407,416.65x = 1,750,630,402,426.69
  5. Step 5: Solve for x
    x = 1,750,630,402,426.69/1,407,416.65
  6. Step 6: Final answer
    x = 1,243,860.80

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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.