Home / 738,440.67-1,019,022.93-407,309.72

Finding the Fourth Proportional to 738,440.67, 1,019,022.93 and 407,309.72

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Solution

The fourth proportional to 738,440.67, 1,019,022.93 and 407,309.72 is: 562,073.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,440.67 : 1,019,022.93 = 407,309.72 : x
  2. Step 2: Convert to fraction form
    738,440.67/1,019,022.93 = 407,309.72/x
  3. Step 3: Cross multiply
    738,440.67x = 1,019,022.93 × 407,309.72
  4. Step 4: Simplify right side
    738,440.67x = 415,057,944,802.89
  5. Step 5: Solve for x
    x = 415,057,944,802.89/738,440.67
  6. Step 6: Final answer
    x = 562,073.52

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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.