Home / 740,517.03-1,021,918.41-400,985.28

Finding the Fourth Proportional to 740,517.03, 1,021,918.41 and 400,985.28

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Solution

The fourth proportional to 740,517.03, 1,021,918.41 and 400,985.28 is: 553,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,517.03 : 1,021,918.41 = 400,985.28 : x
  2. Step 2: Convert to fraction form
    740,517.03/1,021,918.41 = 400,985.28/x
  3. Step 3: Cross multiply
    740,517.03x = 1,021,918.41 × 400,985.28
  4. Step 4: Simplify right side
    740,517.03x = 409,774,239,771.01
  5. Step 5: Solve for x
    x = 409,774,239,771.01/740,517.03
  6. Step 6: Final answer
    x = 553,362.34

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1.5x scale

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.