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Finding the Fourth Proportional to 578,657.60, 808,254.40 and 578,657.60

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Solution

The fourth proportional to 578,657.60, 808,254.40 and 578,657.60 is: 808,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,657.60 : 808,254.40 = 578,657.60 : x
  2. Step 2: Convert to fraction form
    578,657.60/808,254.40 = 578,657.60/x
  3. Step 3: Cross multiply
    578,657.60x = 808,254.40 × 578,657.60
  4. Step 4: Simplify right side
    578,657.60x = 467,702,551,293.44
  5. Step 5: Solve for x
    x = 467,702,551,293.44/578,657.60
  6. Step 6: Final answer
    x = 808,254.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.