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Finding the Fourth Proportional to 652,307.96, 900,283.38 and 397,806.78

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Solution

The fourth proportional to 652,307.96, 900,283.38 and 397,806.78 is: 549,033.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,307.96 : 900,283.38 = 397,806.78 : x
  2. Step 2: Convert to fraction form
    652,307.96/900,283.38 = 397,806.78/x
  3. Step 3: Cross multiply
    652,307.96x = 900,283.38 × 397,806.78
  4. Step 4: Simplify right side
    652,307.96x = 358,138,832,485.32
  5. Step 5: Solve for x
    x = 358,138,832,485.32/652,307.96
  6. Step 6: Final answer
    x = 549,033.36

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1.5x scale

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.