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Finding the Fourth Proportional to 510,656.49, 765,267.75 and 403,569.63

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Solution

The fourth proportional to 510,656.49, 765,267.75 and 403,569.63 is: 604,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,656.49 : 765,267.75 = 403,569.63 : x
  2. Step 2: Convert to fraction form
    510,656.49/765,267.75 = 403,569.63/x
  3. Step 3: Cross multiply
    510,656.49x = 765,267.75 × 403,569.63
  4. Step 4: Simplify right side
    510,656.49x = 308,838,822,718.43
  5. Step 5: Solve for x
    x = 308,838,822,718.43/510,656.49
  6. Step 6: Final answer
    x = 604,787.81

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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.