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Finding the Fourth Proportional to 722,484.40, 997,064.52 and 435,999.76

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Solution

The fourth proportional to 722,484.40, 997,064.52 and 435,999.76 is: 601,701.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,484.40 : 997,064.52 = 435,999.76 : x
  2. Step 2: Convert to fraction form
    722,484.40/997,064.52 = 435,999.76/x
  3. Step 3: Cross multiply
    722,484.40x = 997,064.52 × 435,999.76
  4. Step 4: Simplify right side
    722,484.40x = 434,719,891,424.52
  5. Step 5: Solve for x
    x = 434,719,891,424.52/722,484.40
  6. Step 6: Final answer
    x = 601,701.42

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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.