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Finding the Fourth Proportional to 535,283.68, 738,666.48 and 309,002.08

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Solution

The fourth proportional to 535,283.68, 738,666.48 and 309,002.08 is: 426,408.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,283.68 : 738,666.48 = 309,002.08 : x
  2. Step 2: Convert to fraction form
    535,283.68/738,666.48 = 309,002.08/x
  3. Step 3: Cross multiply
    535,283.68x = 738,666.48 × 309,002.08
  4. Step 4: Simplify right side
    535,283.68x = 228,249,478,746.28
  5. Step 5: Solve for x
    x = 228,249,478,746.28/535,283.68
  6. Step 6: Final answer
    x = 426,408.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.