Home / 742,566.42-1,114,011.54-422,869.32

Finding the Fourth Proportional to 742,566.42, 1,114,011.54 and 422,869.32

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Solution

The fourth proportional to 742,566.42, 1,114,011.54 and 422,869.32 is: 634,396.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,566.42 : 1,114,011.54 = 422,869.32 : x
  2. Step 2: Convert to fraction form
    742,566.42/1,114,011.54 = 422,869.32/x
  3. Step 3: Cross multiply
    742,566.42x = 1,114,011.54 × 422,869.32
  4. Step 4: Simplify right side
    742,566.42x = 471,081,302,391.95
  5. Step 5: Solve for x
    x = 471,081,302,391.95/742,566.42
  6. Step 6: Final answer
    x = 634,396.18

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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.