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Finding the Fourth Proportional to 448,485.62, 618,907.65 and 247,281.62

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Solution

The fourth proportional to 448,485.62, 618,907.65 and 247,281.62 is: 341,247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,485.62 : 618,907.65 = 247,281.62 : x
  2. Step 2: Convert to fraction form
    448,485.62/618,907.65 = 247,281.62/x
  3. Step 3: Cross multiply
    448,485.62x = 618,907.65 × 247,281.62
  4. Step 4: Simplify right side
    448,485.62x = 153,044,486,322.39
  5. Step 5: Solve for x
    x = 153,044,486,322.39/448,485.62
  6. Step 6: Final answer
    x = 341,247.25

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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.