Home / 788,442.80-1,182,664.20-456,666.80

Finding the Fourth Proportional to 788,442.80, 1,182,664.20 and 456,666.80

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Solution

The fourth proportional to 788,442.80, 1,182,664.20 and 456,666.80 is: 685,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,442.80 : 1,182,664.20 = 456,666.80 : x
  2. Step 2: Convert to fraction form
    788,442.80/1,182,664.20 = 456,666.80/x
  3. Step 3: Cross multiply
    788,442.80x = 1,182,664.20 × 456,666.80
  4. Step 4: Simplify right side
    788,442.80x = 540,083,475,688.56
  5. Step 5: Solve for x
    x = 540,083,475,688.56/788,442.80
  6. Step 6: Final answer
    x = 685,000.20

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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.