Home / 740,300.67-1,021,617.23-400,768.11

Finding the Fourth Proportional to 740,300.67, 1,021,617.23 and 400,768.11

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Solution

The fourth proportional to 740,300.67, 1,021,617.23 and 400,768.11 is: 553,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,300.67 : 1,021,617.23 = 400,768.11 : x
  2. Step 2: Convert to fraction form
    740,300.67/1,021,617.23 = 400,768.11/x
  3. Step 3: Cross multiply
    740,300.67x = 1,021,617.23 × 400,768.11
  4. Step 4: Simplify right side
    740,300.67x = 409,431,604,406.70
  5. Step 5: Solve for x
    x = 409,431,604,406.70/740,300.67
  6. Step 6: Final answer
    x = 553,061.24

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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.