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Finding the Fourth Proportional to 510,343.94, 763,643.66 and 425,895.64

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Solution

The fourth proportional to 510,343.94, 763,643.66 and 425,895.64 is: 637,281.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,343.94 : 763,643.66 = 425,895.64 : x
  2. Step 2: Convert to fraction form
    510,343.94/763,643.66 = 425,895.64/x
  3. Step 3: Cross multiply
    510,343.94x = 763,643.66 × 425,895.64
  4. Step 4: Simplify right side
    510,343.94x = 325,232,505,307.64
  5. Step 5: Solve for x
    x = 325,232,505,307.64/510,343.94
  6. Step 6: Final answer
    x = 637,281.02

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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.