Home / 1,245,437.76-1,861,332.96-909,186.51

Finding the Fourth Proportional to 1,245,437.76, 1,861,332.96 and 909,186.51

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Solution

The fourth proportional to 1,245,437.76, 1,861,332.96 and 909,186.51 is: 1,358,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,437.76 : 1,861,332.96 = 909,186.51 : x
  2. Step 2: Convert to fraction form
    1,245,437.76/1,861,332.96 = 909,186.51/x
  3. Step 3: Cross multiply
    1,245,437.76x = 1,861,332.96 × 909,186.51
  4. Step 4: Simplify right side
    1,245,437.76x = 1,692,298,817,850.37
  5. Step 5: Solve for x
    x = 1,692,298,817,850.37/1,245,437.76
  6. Step 6: Final answer
    x = 1,358,798.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.