Home / 1,406,409.90-1,940,854.98-761,830.09

Finding the Fourth Proportional to 1,406,409.90, 1,940,854.98 and 761,830.09

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Solution

The fourth proportional to 1,406,409.90, 1,940,854.98 and 761,830.09 is: 1,051,330.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,409.90 : 1,940,854.98 = 761,830.09 : x
  2. Step 2: Convert to fraction form
    1,406,409.90/1,940,854.98 = 761,830.09/x
  3. Step 3: Cross multiply
    1,406,409.90x = 1,940,854.98 × 761,830.09
  4. Step 4: Simplify right side
    1,406,409.90x = 1,478,601,728,420.99
  5. Step 5: Solve for x
    x = 1,478,601,728,420.99/1,406,409.90
  6. Step 6: Final answer
    x = 1,051,330.57

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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.