Home / 1,105,328.30-1,658,148.15-385,565.03

Finding the Fourth Proportional to 1,105,328.30, 1,658,148.15 and 385,565.03

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Solution

The fourth proportional to 1,105,328.30, 1,658,148.15 and 385,565.03 is: 578,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,328.30 : 1,658,148.15 = 385,565.03 : x
  2. Step 2: Convert to fraction form
    1,105,328.30/1,658,148.15 = 385,565.03/x
  3. Step 3: Cross multiply
    1,105,328.30x = 1,658,148.15 × 385,565.03
  4. Step 4: Simplify right side
    1,105,328.30x = 639,323,932,908.45
  5. Step 5: Solve for x
    x = 639,323,932,908.45/1,105,328.30
  6. Step 6: Final answer
    x = 578,401.85

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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.