Home / 920,419.56-1,269,769.06-538,277.76

Finding the Fourth Proportional to 920,419.56, 1,269,769.06 and 538,277.76

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Solution

The fourth proportional to 920,419.56, 1,269,769.06 and 538,277.76 is: 742,583.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,419.56 : 1,269,769.06 = 538,277.76 : x
  2. Step 2: Convert to fraction form
    920,419.56/1,269,769.06 = 538,277.76/x
  3. Step 3: Cross multiply
    920,419.56x = 1,269,769.06 × 538,277.76
  4. Step 4: Simplify right side
    920,419.56x = 683,488,445,334.11
  5. Step 5: Solve for x
    x = 683,488,445,334.11/920,419.56
  6. Step 6: Final answer
    x = 742,583.57

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1.5x scale

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.