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Finding the Fourth Proportional to 540,045.60, 810,068.40 and 453,440.40

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Solution

The fourth proportional to 540,045.60, 810,068.40 and 453,440.40 is: 680,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,045.60 : 810,068.40 = 453,440.40 : x
  2. Step 2: Convert to fraction form
    540,045.60/810,068.40 = 453,440.40/x
  3. Step 3: Cross multiply
    540,045.60x = 810,068.40 × 453,440.40
  4. Step 4: Simplify right side
    540,045.60x = 367,317,739,323.36
  5. Step 5: Solve for x
    x = 367,317,739,323.36/540,045.60
  6. Step 6: Final answer
    x = 680,160.60

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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.