Home / 759,861.81-1,139,792.49-286,436.45

Finding the Fourth Proportional to 759,861.81, 1,139,792.49 and 286,436.45

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Solution

The fourth proportional to 759,861.81, 1,139,792.49 and 286,436.45 is: 429,654.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,861.81 : 1,139,792.49 = 286,436.45 : x
  2. Step 2: Convert to fraction form
    759,861.81/1,139,792.49 = 286,436.45/x
  3. Step 3: Cross multiply
    759,861.81x = 1,139,792.49 × 286,436.45
  4. Step 4: Simplify right side
    759,861.81x = 326,478,116,616.14
  5. Step 5: Solve for x
    x = 326,478,116,616.14/759,861.81
  6. Step 6: Final answer
    x = 429,654.59

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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.