Home / 1,310,106.81-1,807,827.80-766,147.98

Finding the Fourth Proportional to 1,310,106.81, 1,807,827.80 and 766,147.98

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Solution

The fourth proportional to 1,310,106.81, 1,807,827.80 and 766,147.98 is: 1,057,214.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,106.81 : 1,807,827.80 = 766,147.98 : x
  2. Step 2: Convert to fraction form
    1,310,106.81/1,807,827.80 = 766,147.98/x
  3. Step 3: Cross multiply
    1,310,106.81x = 1,807,827.80 × 766,147.98
  4. Step 4: Simplify right side
    1,310,106.81x = 1,385,063,613,327.10
  5. Step 5: Solve for x
    x = 1,385,063,613,327.10/1,310,106.81
  6. Step 6: Final answer
    x = 1,057,214.27

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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.