Home / 789,909.65-1,090,070.82-427,332.45

Finding the Fourth Proportional to 789,909.65, 1,090,070.82 and 427,332.45

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Solution

The fourth proportional to 789,909.65, 1,090,070.82 and 427,332.45 is: 589,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,909.65 : 1,090,070.82 = 427,332.45 : x
  2. Step 2: Convert to fraction form
    789,909.65/1,090,070.82 = 427,332.45/x
  3. Step 3: Cross multiply
    789,909.65x = 1,090,070.82 × 427,332.45
  4. Step 4: Simplify right side
    789,909.65x = 465,822,634,184.11
  5. Step 5: Solve for x
    x = 465,822,634,184.11/789,909.65
  6. Step 6: Final answer
    x = 589,716.35

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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.