Home / 788,685.30-1,183,319.55-256,223.70

Finding the Fourth Proportional to 788,685.30, 1,183,319.55 and 256,223.70

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Solution

The fourth proportional to 788,685.30, 1,183,319.55 and 256,223.70 is: 384,430.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,685.30 : 1,183,319.55 = 256,223.70 : x
  2. Step 2: Convert to fraction form
    788,685.30/1,183,319.55 = 256,223.70/x
  3. Step 3: Cross multiply
    788,685.30x = 1,183,319.55 × 256,223.70
  4. Step 4: Simplify right side
    788,685.30x = 303,194,513,383.34
  5. Step 5: Solve for x
    x = 303,194,513,383.34/788,685.30
  6. Step 6: Final answer
    x = 384,430.28

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1.5x scale

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.