Home / 1,257,378.39-1,886,048.96-310,748.81

Finding the Fourth Proportional to 1,257,378.39, 1,886,048.96 and 310,748.81

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Solution

The fourth proportional to 1,257,378.39, 1,886,048.96 and 310,748.81 is: 466,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,378.39 : 1,886,048.96 = 310,748.81 : x
  2. Step 2: Convert to fraction form
    1,257,378.39/1,886,048.96 = 310,748.81/x
  3. Step 3: Cross multiply
    1,257,378.39x = 1,886,048.96 × 310,748.81
  4. Step 4: Simplify right side
    1,257,378.39x = 586,087,458,937.75
  5. Step 5: Solve for x
    x = 586,087,458,937.75/1,257,378.39
  6. Step 6: Final answer
    x = 466,118.60

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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.