Home / 1,553,140.32-2,143,630.80-941,626.40

Finding the Fourth Proportional to 1,553,140.32, 2,143,630.80 and 941,626.40

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Solution

The fourth proportional to 1,553,140.32, 2,143,630.80 and 941,626.40 is: 1,299,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,140.32 : 2,143,630.80 = 941,626.40 : x
  2. Step 2: Convert to fraction form
    1,553,140.32/2,143,630.80 = 941,626.40/x
  3. Step 3: Cross multiply
    1,553,140.32x = 2,143,630.80 × 941,626.40
  4. Step 4: Simplify right side
    1,553,140.32x = 2,018,499,353,133.12
  5. Step 5: Solve for x
    x = 2,018,499,353,133.12/1,553,140.32
  6. Step 6: Final answer
    x = 1,299,624.59

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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.