Home / 903,569.07-1,355,767.17-391,390.72

Finding the Fourth Proportional to 903,569.07, 1,355,767.17 and 391,390.72

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Solution

The fourth proportional to 903,569.07, 1,355,767.17 and 391,390.72 is: 587,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,569.07 : 1,355,767.17 = 391,390.72 : x
  2. Step 2: Convert to fraction form
    903,569.07/1,355,767.17 = 391,390.72/x
  3. Step 3: Cross multiply
    903,569.07x = 1,355,767.17 × 391,390.72
  4. Step 4: Simplify right side
    903,569.07x = 530,634,683,961.53
  5. Step 5: Solve for x
    x = 530,634,683,961.53/903,569.07
  6. Step 6: Final answer
    x = 587,265.21

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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.