Home / 1,140,643.80-1,573,923.69-631,344.96

Finding the Fourth Proportional to 1,140,643.80, 1,573,923.69 and 631,344.96

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Solution

The fourth proportional to 1,140,643.80, 1,573,923.69 and 631,344.96 is: 871,164.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,643.80 : 1,573,923.69 = 631,344.96 : x
  2. Step 2: Convert to fraction form
    1,140,643.80/1,573,923.69 = 631,344.96/x
  3. Step 3: Cross multiply
    1,140,643.80x = 1,573,923.69 × 631,344.96
  4. Step 4: Simplify right side
    1,140,643.80x = 993,688,789,106.10
  5. Step 5: Solve for x
    x = 993,688,789,106.10/1,140,643.80
  6. Step 6: Final answer
    x = 871,164.85

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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.