Home / 1,239,931.72-1,860,210.78-353,467.72

Finding the Fourth Proportional to 1,239,931.72, 1,860,210.78 and 353,467.72

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Solution

The fourth proportional to 1,239,931.72, 1,860,210.78 and 353,467.72 is: 530,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,931.72 : 1,860,210.78 = 353,467.72 : x
  2. Step 2: Convert to fraction form
    1,239,931.72/1,860,210.78 = 353,467.72/x
  3. Step 3: Cross multiply
    1,239,931.72x = 1,860,210.78 × 353,467.72
  4. Step 4: Simplify right side
    1,239,931.72x = 657,524,463,126.02
  5. Step 5: Solve for x
    x = 657,524,463,126.02/1,239,931.72
  6. Step 6: Final answer
    x = 530,290.86

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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.