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Finding the Fourth Proportional to 540,378.72, 810,566.82 and 507,495.78

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Solution

The fourth proportional to 540,378.72, 810,566.82 and 507,495.78 is: 761,242.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,378.72 : 810,566.82 = 507,495.78 : x
  2. Step 2: Convert to fraction form
    540,378.72/810,566.82 = 507,495.78/x
  3. Step 3: Cross multiply
    540,378.72x = 810,566.82 × 507,495.78
  4. Step 4: Simplify right side
    540,378.72x = 411,359,240,558.02
  5. Step 5: Solve for x
    x = 411,359,240,558.02/540,378.72
  6. Step 6: Final answer
    x = 761,242.49

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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.