Home / 1,070,034.51-1,605,577.11-430,312.38

Finding the Fourth Proportional to 1,070,034.51, 1,605,577.11 and 430,312.38

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Solution

The fourth proportional to 1,070,034.51, 1,605,577.11 and 430,312.38 is: 645,679.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,034.51 : 1,605,577.11 = 430,312.38 : x
  2. Step 2: Convert to fraction form
    1,070,034.51/1,605,577.11 = 430,312.38/x
  3. Step 3: Cross multiply
    1,070,034.51x = 1,605,577.11 × 430,312.38
  4. Step 4: Simplify right side
    1,070,034.51x = 690,899,707,477.62
  5. Step 5: Solve for x
    x = 690,899,707,477.62/1,070,034.51
  6. Step 6: Final answer
    x = 645,679.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.