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Finding the Fourth Proportional to 578,984.96, 869,812.32 and 555,070.40

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Solution

The fourth proportional to 578,984.96, 869,812.32 and 555,070.40 is: 833,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,984.96 : 869,812.32 = 555,070.40 : x
  2. Step 2: Convert to fraction form
    578,984.96/869,812.32 = 555,070.40/x
  3. Step 3: Cross multiply
    578,984.96x = 869,812.32 × 555,070.40
  4. Step 4: Simplify right side
    578,984.96x = 482,807,072,387.33
  5. Step 5: Solve for x
    x = 482,807,072,387.33/578,984.96
  6. Step 6: Final answer
    x = 833,885.34

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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.