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Finding the Fourth Proportional to 666,230.57, 919,395.50 and 360,307.24

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Solution

The fourth proportional to 666,230.57, 919,395.50 and 360,307.24 is: 497,222.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,230.57 : 919,395.50 = 360,307.24 : x
  2. Step 2: Convert to fraction form
    666,230.57/919,395.50 = 360,307.24/x
  3. Step 3: Cross multiply
    666,230.57x = 919,395.50 × 360,307.24
  4. Step 4: Simplify right side
    666,230.57x = 331,264,850,973.40
  5. Step 5: Solve for x
    x = 331,264,850,973.40/666,230.57
  6. Step 6: Final answer
    x = 497,222.53

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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.