Home / 788,862.30-1,183,293.45-290,420.70

Finding the Fourth Proportional to 788,862.30, 1,183,293.45 and 290,420.70

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Solution

The fourth proportional to 788,862.30, 1,183,293.45 and 290,420.70 is: 435,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,862.30 : 1,183,293.45 = 290,420.70 : x
  2. Step 2: Convert to fraction form
    788,862.30/1,183,293.45 = 290,420.70/x
  3. Step 3: Cross multiply
    788,862.30x = 1,183,293.45 × 290,420.70
  4. Step 4: Simplify right side
    788,862.30x = 343,652,912,054.42
  5. Step 5: Solve for x
    x = 343,652,912,054.42/788,862.30
  6. Step 6: Final answer
    x = 435,631.05

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Double scale
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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.