Home / 610,629.57-842,769.63-338,784.98

Finding the Fourth Proportional to 610,629.57, 842,769.63 and 338,784.98

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Solution

The fourth proportional to 610,629.57, 842,769.63 and 338,784.98 is: 467,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,629.57 : 842,769.63 = 338,784.98 : x
  2. Step 2: Convert to fraction form
    610,629.57/842,769.63 = 338,784.98/x
  3. Step 3: Cross multiply
    610,629.57x = 842,769.63 × 338,784.98
  4. Step 4: Simplify right side
    610,629.57x = 285,517,688,030.31
  5. Step 5: Solve for x
    x = 285,517,688,030.31/610,629.57
  6. Step 6: Final answer
    x = 467,579.20

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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.