Home / 1,007,486.81-1,511,429.65-287,834.64

Finding the Fourth Proportional to 1,007,486.81, 1,511,429.65 and 287,834.64

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Solution

The fourth proportional to 1,007,486.81, 1,511,429.65 and 287,834.64 is: 431,808.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,486.81 : 1,511,429.65 = 287,834.64 : x
  2. Step 2: Convert to fraction form
    1,007,486.81/1,511,429.65 = 287,834.64/x
  3. Step 3: Cross multiply
    1,007,486.81x = 1,511,429.65 × 287,834.64
  4. Step 4: Simplify right side
    1,007,486.81x = 435,041,807,866.06
  5. Step 5: Solve for x
    x = 435,041,807,866.06/1,007,486.81
  6. Step 6: Final answer
    x = 431,808.94

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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.