Home / 430,823.39-644,435.09-302,730.71

Finding the Fourth Proportional to 430,823.39, 644,435.09 and 302,730.71

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Solution

The fourth proportional to 430,823.39, 644,435.09 and 302,730.71 is: 452,831.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,823.39 : 644,435.09 = 302,730.71 : x
  2. Step 2: Convert to fraction form
    430,823.39/644,435.09 = 302,730.71/x
  3. Step 3: Cross multiply
    430,823.39x = 644,435.09 × 302,730.71
  4. Step 4: Simplify right side
    430,823.39x = 195,090,287,608.79
  5. Step 5: Solve for x
    x = 195,090,287,608.79/430,823.39
  6. Step 6: Final answer
    x = 452,831.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.