Home / 1,216,631.68-1,678,962.67-672,804.36

Finding the Fourth Proportional to 1,216,631.68, 1,678,962.67 and 672,804.36

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Solution

The fourth proportional to 1,216,631.68, 1,678,962.67 and 672,804.36 is: 928,476.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,631.68 : 1,678,962.67 = 672,804.36 : x
  2. Step 2: Convert to fraction form
    1,216,631.68/1,678,962.67 = 672,804.36/x
  3. Step 3: Cross multiply
    1,216,631.68x = 1,678,962.67 × 672,804.36
  4. Step 4: Simplify right side
    1,216,631.68x = 1,129,613,402,971.23
  5. Step 5: Solve for x
    x = 1,129,613,402,971.23/1,216,631.68
  6. Step 6: Final answer
    x = 928,476.07

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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.