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Finding the Fourth Proportional to 545,683.60, 818,525.40 and 498,444.40

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Solution

The fourth proportional to 545,683.60, 818,525.40 and 498,444.40 is: 747,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,683.60 : 818,525.40 = 498,444.40 : x
  2. Step 2: Convert to fraction form
    545,683.60/818,525.40 = 498,444.40/x
  3. Step 3: Cross multiply
    545,683.60x = 818,525.40 × 498,444.40
  4. Step 4: Simplify right side
    545,683.60x = 407,989,401,887.76
  5. Step 5: Solve for x
    x = 407,989,401,887.76/545,683.60
  6. Step 6: Final answer
    x = 747,666.60

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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.