Home / 740,070.90-1,021,297.84-400,539.14

Finding the Fourth Proportional to 740,070.90, 1,021,297.84 and 400,539.14

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Solution

The fourth proportional to 740,070.90, 1,021,297.84 and 400,539.14 is: 552,744.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,070.90 : 1,021,297.84 = 400,539.14 : x
  2. Step 2: Convert to fraction form
    740,070.90/1,021,297.84 = 400,539.14/x
  3. Step 3: Cross multiply
    740,070.90x = 1,021,297.84 × 400,539.14
  4. Step 4: Simplify right side
    740,070.90x = 409,069,758,517.46
  5. Step 5: Solve for x
    x = 409,069,758,517.46/740,070.90
  6. Step 6: Final answer
    x = 552,744.01

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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.