Home / 742,790.34-1,025,063.01-403,258.50

Finding the Fourth Proportional to 742,790.34, 1,025,063.01 and 403,258.50

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Solution

The fourth proportional to 742,790.34, 1,025,063.01 and 403,258.50 is: 556,503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,790.34 : 1,025,063.01 = 403,258.50 : x
  2. Step 2: Convert to fraction form
    742,790.34/1,025,063.01 = 403,258.50/x
  3. Step 3: Cross multiply
    742,790.34x = 1,025,063.01 × 403,258.50
  4. Step 4: Simplify right side
    742,790.34x = 413,365,371,818.09
  5. Step 5: Solve for x
    x = 413,365,371,818.09/742,790.34
  6. Step 6: Final answer
    x = 556,503.43

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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.