Home / 1,019,484.72-1,529,128.38-309,518.91

Finding the Fourth Proportional to 1,019,484.72, 1,529,128.38 and 309,518.91

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Solution

The fourth proportional to 1,019,484.72, 1,529,128.38 and 309,518.91 is: 464,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,484.72 : 1,529,128.38 = 309,518.91 : x
  2. Step 2: Convert to fraction form
    1,019,484.72/1,529,128.38 = 309,518.91/x
  3. Step 3: Cross multiply
    1,019,484.72x = 1,529,128.38 × 309,518.91
  4. Step 4: Simplify right side
    1,019,484.72x = 473,294,149,427.67
  5. Step 5: Solve for x
    x = 473,294,149,427.67/1,019,484.72
  6. Step 6: Final answer
    x = 464,248.40

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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.