Home / 1,377,353.70-2,066,030.55-430,820.10

Finding the Fourth Proportional to 1,377,353.70, 2,066,030.55 and 430,820.10

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Solution

The fourth proportional to 1,377,353.70, 2,066,030.55 and 430,820.10 is: 646,230.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,353.70 : 2,066,030.55 = 430,820.10 : x
  2. Step 2: Convert to fraction form
    1,377,353.70/2,066,030.55 = 430,820.10/x
  3. Step 3: Cross multiply
    1,377,353.70x = 2,066,030.55 × 430,820.10
  4. Step 4: Simplify right side
    1,377,353.70x = 890,087,488,154.06
  5. Step 5: Solve for x
    x = 890,087,488,154.06/1,377,353.70
  6. Step 6: Final answer
    x = 646,230.15

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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.