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Finding the Fourth Proportional to 578,901.36, 798,445.04 and 507,156.96

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Solution

The fourth proportional to 578,901.36, 798,445.04 and 507,156.96 is: 699,492.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,901.36 : 798,445.04 = 507,156.96 : x
  2. Step 2: Convert to fraction form
    578,901.36/798,445.04 = 507,156.96/x
  3. Step 3: Cross multiply
    578,901.36x = 798,445.04 × 507,156.96
  4. Step 4: Simplify right side
    578,901.36x = 404,936,959,213.48
  5. Step 5: Solve for x
    x = 404,936,959,213.48/578,901.36
  6. Step 6: Final answer
    x = 699,492.15

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.