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Finding the Fourth Proportional to 612,417.48, 845,206.02 and 340,512.36

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Solution

The fourth proportional to 612,417.48, 845,206.02 and 340,512.36 is: 469,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,417.48 : 845,206.02 = 340,512.36 : x
  2. Step 2: Convert to fraction form
    612,417.48/845,206.02 = 340,512.36/x
  3. Step 3: Cross multiply
    612,417.48x = 845,206.02 × 340,512.36
  4. Step 4: Simplify right side
    612,417.48x = 287,803,096,556.41
  5. Step 5: Solve for x
    x = 287,803,096,556.41/612,417.48
  6. Step 6: Final answer
    x = 469,945.92

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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.