Home / 740,017.28-1,021,223.83-400,485.53

Finding the Fourth Proportional to 740,017.28, 1,021,223.83 and 400,485.53

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Solution

The fourth proportional to 740,017.28, 1,021,223.83 and 400,485.53 is: 552,670.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,017.28 : 1,021,223.83 = 400,485.53 : x
  2. Step 2: Convert to fraction form
    740,017.28/1,021,223.83 = 400,485.53/x
  3. Step 3: Cross multiply
    740,017.28x = 1,021,223.83 × 400,485.53
  4. Step 4: Simplify right side
    740,017.28x = 408,985,366,030.26
  5. Step 5: Solve for x
    x = 408,985,366,030.26/740,017.28
  6. Step 6: Final answer
    x = 552,670.02

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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.