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Finding the Fourth Proportional to 907,641.42, 1,252,575 and 499,773.21

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Solution

The fourth proportional to 907,641.42, 1,252,575 and 499,773.21 is: 689,703.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,641.42 : 1,252,575 = 499,773.21 : x
  2. Step 2: Convert to fraction form
    907,641.42/1,252,575 = 499,773.21/x
  3. Step 3: Cross multiply
    907,641.42x = 1,252,575 × 499,773.21
  4. Step 4: Simplify right side
    907,641.42x = 626,003,428,515.75
  5. Step 5: Solve for x
    x = 626,003,428,515.75/907,641.42
  6. Step 6: Final answer
    x = 689,703.46

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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.