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Finding the Fourth Proportional to 522,831.40, 785,024.70 and 404,636.20

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Solution

The fourth proportional to 522,831.40, 785,024.70 and 404,636.20 is: 607,556.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,831.40 : 785,024.70 = 404,636.20 : x
  2. Step 2: Convert to fraction form
    522,831.40/785,024.70 = 404,636.20/x
  3. Step 3: Cross multiply
    522,831.40x = 785,024.70 × 404,636.20
  4. Step 4: Simplify right side
    522,831.40x = 317,649,411,514.14
  5. Step 5: Solve for x
    x = 317,649,411,514.14/522,831.40
  6. Step 6: Final answer
    x = 607,556.11

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1.5x scale

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.