Home / 612,415.48-845,203.26-340,510.36

Finding the Fourth Proportional to 612,415.48, 845,203.26 and 340,510.36

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Solution

The fourth proportional to 612,415.48, 845,203.26 and 340,510.36 is: 469,943.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,415.48 : 845,203.26 = 340,510.36 : x
  2. Step 2: Convert to fraction form
    612,415.48/845,203.26 = 340,510.36/x
  3. Step 3: Cross multiply
    612,415.48x = 845,203.26 × 340,510.36
  4. Step 4: Simplify right side
    612,415.48x = 287,800,466,335.77
  5. Step 5: Solve for x
    x = 287,800,466,335.77/612,415.48
  6. Step 6: Final answer
    x = 469,943.16

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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.