Home / 970,045.28-1,338,703.79-540,325.60

Finding the Fourth Proportional to 970,045.28, 1,338,703.79 and 540,325.60

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Solution

The fourth proportional to 970,045.28, 1,338,703.79 and 540,325.60 is: 745,672.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,045.28 : 1,338,703.79 = 540,325.60 : x
  2. Step 2: Convert to fraction form
    970,045.28/1,338,703.79 = 540,325.60/x
  3. Step 3: Cross multiply
    970,045.28x = 1,338,703.79 × 540,325.60
  4. Step 4: Simplify right side
    970,045.28x = 723,335,928,554.02
  5. Step 5: Solve for x
    x = 723,335,928,554.02/970,045.28
  6. Step 6: Final answer
    x = 745,672.33

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Double scale
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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.