Home / 745,187.23-1,028,500.10-422,927.52

Finding the Fourth Proportional to 745,187.23, 1,028,500.10 and 422,927.52

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Solution

The fourth proportional to 745,187.23, 1,028,500.10 and 422,927.52 is: 583,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,187.23 : 1,028,500.10 = 422,927.52 : x
  2. Step 2: Convert to fraction form
    745,187.23/1,028,500.10 = 422,927.52/x
  3. Step 3: Cross multiply
    745,187.23x = 1,028,500.10 × 422,927.52
  4. Step 4: Simplify right side
    745,187.23x = 434,980,989,355.61
  5. Step 5: Solve for x
    x = 434,980,989,355.61/745,187.23
  6. Step 6: Final answer
    x = 583,720.40

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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.