Home / 1,143,673.80-1,578,271.40-634,376.16

Finding the Fourth Proportional to 1,143,673.80, 1,578,271.40 and 634,376.16

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Solution

The fourth proportional to 1,143,673.80, 1,578,271.40 and 634,376.16 is: 875,439.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,673.80 : 1,578,271.40 = 634,376.16 : x
  2. Step 2: Convert to fraction form
    1,143,673.80/1,578,271.40 = 634,376.16/x
  3. Step 3: Cross multiply
    1,143,673.80x = 1,578,271.40 × 634,376.16
  4. Step 4: Simplify right side
    1,143,673.80x = 1,001,217,750,169.82
  5. Step 5: Solve for x
    x = 1,001,217,750,169.82/1,143,673.80
  6. Step 6: Final answer
    x = 875,439.96

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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.