Home / 745,578.61-1,028,927.60-423,318.69

Finding the Fourth Proportional to 745,578.61, 1,028,927.60 and 423,318.69

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Solution

The fourth proportional to 745,578.61, 1,028,927.60 and 423,318.69 is: 584,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,578.61 : 1,028,927.60 = 423,318.69 : x
  2. Step 2: Convert to fraction form
    745,578.61/1,028,927.60 = 423,318.69/x
  3. Step 3: Cross multiply
    745,578.61x = 1,028,927.60 × 423,318.69
  4. Step 4: Simplify right side
    745,578.61x = 435,564,283,736.84
  5. Step 5: Solve for x
    x = 435,564,283,736.84/745,578.61
  6. Step 6: Final answer
    x = 584,196.32

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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.