Home / 788,707.20-1,183,060.80-488,213.40

Finding the Fourth Proportional to 788,707.20, 1,183,060.80 and 488,213.40

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Solution

The fourth proportional to 788,707.20, 1,183,060.80 and 488,213.40 is: 732,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,707.20 : 1,183,060.80 = 488,213.40 : x
  2. Step 2: Convert to fraction form
    788,707.20/1,183,060.80 = 488,213.40/x
  3. Step 3: Cross multiply
    788,707.20x = 1,183,060.80 × 488,213.40
  4. Step 4: Simplify right side
    788,707.20x = 577,586,135,574.72
  5. Step 5: Solve for x
    x = 577,586,135,574.72/788,707.20
  6. Step 6: Final answer
    x = 732,320.10

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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.