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Finding the Fourth Proportional to 631,366.80, 946,013.40 and 525,613.20

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Solution

The fourth proportional to 631,366.80, 946,013.40 and 525,613.20 is: 787,556.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,366.80 : 946,013.40 = 525,613.20 : x
  2. Step 2: Convert to fraction form
    631,366.80/946,013.40 = 525,613.20/x
  3. Step 3: Cross multiply
    631,366.80x = 946,013.40 × 525,613.20
  4. Step 4: Simplify right side
    631,366.80x = 497,237,130,416.88
  5. Step 5: Solve for x
    x = 497,237,130,416.88/631,366.80
  6. Step 6: Final answer
    x = 787,556.66

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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.