Home / 970,087.80-1,338,744.54-540,374.76

Finding the Fourth Proportional to 970,087.80, 1,338,744.54 and 540,374.76

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Solution

The fourth proportional to 970,087.80, 1,338,744.54 and 540,374.76 is: 745,730.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,087.80 : 1,338,744.54 = 540,374.76 : x
  2. Step 2: Convert to fraction form
    970,087.80/1,338,744.54 = 540,374.76/x
  3. Step 3: Cross multiply
    970,087.80x = 1,338,744.54 × 540,374.76
  4. Step 4: Simplify right side
    970,087.80x = 723,423,759,503.81
  5. Step 5: Solve for x
    x = 723,423,759,503.81/970,087.80
  6. Step 6: Final answer
    x = 745,730.19

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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.