Home / 869,938.20-1,303,352.10-711,307.80

Finding the Fourth Proportional to 869,938.20, 1,303,352.10 and 711,307.80

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Solution

The fourth proportional to 869,938.20, 1,303,352.10 and 711,307.80 is: 1,065,690.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,938.20 : 1,303,352.10 = 711,307.80 : x
  2. Step 2: Convert to fraction form
    869,938.20/1,303,352.10 = 711,307.80/x
  3. Step 3: Cross multiply
    869,938.20x = 1,303,352.10 × 711,307.80
  4. Step 4: Simplify right side
    869,938.20x = 927,084,514,876.38
  5. Step 5: Solve for x
    x = 927,084,514,876.38/869,938.20
  6. Step 6: Final answer
    x = 1,065,690.09

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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.