Home / 1,008,002.16-1,391,045.40-555,300.72

Finding the Fourth Proportional to 1,008,002.16, 1,391,045.40 and 555,300.72

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Solution

The fourth proportional to 1,008,002.16, 1,391,045.40 and 555,300.72 is: 766,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,002.16 : 1,391,045.40 = 555,300.72 : x
  2. Step 2: Convert to fraction form
    1,008,002.16/1,391,045.40 = 555,300.72/x
  3. Step 3: Cross multiply
    1,008,002.16x = 1,391,045.40 × 555,300.72
  4. Step 4: Simplify right side
    1,008,002.16x = 772,448,512,172.69
  5. Step 5: Solve for x
    x = 772,448,512,172.69/1,008,002.16
  6. Step 6: Final answer
    x = 766,316.33

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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.