Home / 739,157.40-1,020,035.03-399,625.65

Finding the Fourth Proportional to 739,157.40, 1,020,035.03 and 399,625.65

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Solution

The fourth proportional to 739,157.40, 1,020,035.03 and 399,625.65 is: 551,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,157.40 : 1,020,035.03 = 399,625.65 : x
  2. Step 2: Convert to fraction form
    739,157.40/1,020,035.03 = 399,625.65/x
  3. Step 3: Cross multiply
    739,157.40x = 1,020,035.03 × 399,625.65
  4. Step 4: Simplify right side
    739,157.40x = 407,632,159,888.39
  5. Step 5: Solve for x
    x = 407,632,159,888.39/739,157.40
  6. Step 6: Final answer
    x = 551,482.21

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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.