Home / 788,806.20-1,183,209.30-488,312.40

Finding the Fourth Proportional to 788,806.20, 1,183,209.30 and 488,312.40

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Solution

The fourth proportional to 788,806.20, 1,183,209.30 and 488,312.40 is: 732,468.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,806.20 : 1,183,209.30 = 488,312.40 : x
  2. Step 2: Convert to fraction form
    788,806.20/1,183,209.30 = 488,312.40/x
  3. Step 3: Cross multiply
    788,806.20x = 1,183,209.30 × 488,312.40
  4. Step 4: Simplify right side
    788,806.20x = 577,775,772,985.32
  5. Step 5: Solve for x
    x = 577,775,772,985.32/788,806.20
  6. Step 6: Final answer
    x = 732,468.60

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Double scale
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Similar ratio
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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.