Home / 790,447.71-1,090,818.50-427,870.45

Finding the Fourth Proportional to 790,447.71, 1,090,818.50 and 427,870.45

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Solution

The fourth proportional to 790,447.71, 1,090,818.50 and 427,870.45 is: 590,461.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,447.71 : 1,090,818.50 = 427,870.45 : x
  2. Step 2: Convert to fraction form
    790,447.71/1,090,818.50 = 427,870.45/x
  3. Step 3: Cross multiply
    790,447.71x = 1,090,818.50 × 427,870.45
  4. Step 4: Simplify right side
    790,447.71x = 466,729,001,687.50
  5. Step 5: Solve for x
    x = 466,729,001,687.50/790,447.71
  6. Step 6: Final answer
    x = 590,461.57

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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.