Home / 745,059.41-1,028,269.53-418,426.10

Finding the Fourth Proportional to 745,059.41, 1,028,269.53 and 418,426.10

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Solution

The fourth proportional to 745,059.41, 1,028,269.53 and 418,426.10 is: 577,477.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,059.41 : 1,028,269.53 = 418,426.10 : x
  2. Step 2: Convert to fraction form
    745,059.41/1,028,269.53 = 418,426.10/x
  3. Step 3: Cross multiply
    745,059.41x = 1,028,269.53 × 418,426.10
  4. Step 4: Simplify right side
    745,059.41x = 430,254,809,186.73
  5. Step 5: Solve for x
    x = 430,254,809,186.73/745,059.41
  6. Step 6: Final answer
    x = 577,477.18

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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.