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Finding the Fourth Proportional to 501,221.49, 750,036.21 and 433,985.40

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Solution

The fourth proportional to 501,221.49, 750,036.21 and 433,985.40 is: 649,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,221.49 : 750,036.21 = 433,985.40 : x
  2. Step 2: Convert to fraction form
    501,221.49/750,036.21 = 433,985.40/x
  3. Step 3: Cross multiply
    501,221.49x = 750,036.21 × 433,985.40
  4. Step 4: Simplify right side
    501,221.49x = 325,504,764,611.33
  5. Step 5: Solve for x
    x = 325,504,764,611.33/501,221.49
  6. Step 6: Final answer
    x = 649,423.00

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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.