Home / 970,113.06-1,338,578.37-540,382.50

Finding the Fourth Proportional to 970,113.06, 1,338,578.37 and 540,382.50

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Solution

The fourth proportional to 970,113.06, 1,338,578.37 and 540,382.50 is: 745,628.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,113.06 : 1,338,578.37 = 540,382.50 : x
  2. Step 2: Convert to fraction form
    970,113.06/1,338,578.37 = 540,382.50/x
  3. Step 3: Cross multiply
    970,113.06x = 1,338,578.37 × 540,382.50
  4. Step 4: Simplify right side
    970,113.06x = 723,344,326,026.53
  5. Step 5: Solve for x
    x = 723,344,326,026.53/970,113.06
  6. Step 6: Final answer
    x = 745,628.89

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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.