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Finding the Fourth Proportional to 909,701.70, 1,362,912.30 and 435,341.40

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Solution

The fourth proportional to 909,701.70, 1,362,912.30 and 435,341.40 is: 652,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,701.70 : 1,362,912.30 = 435,341.40 : x
  2. Step 2: Convert to fraction form
    909,701.70/1,362,912.30 = 435,341.40/x
  3. Step 3: Cross multiply
    909,701.70x = 1,362,912.30 × 435,341.40
  4. Step 4: Simplify right side
    909,701.70x = 593,332,148,759.22
  5. Step 5: Solve for x
    x = 593,332,148,759.22/909,701.70
  6. Step 6: Final answer
    x = 652,227.15

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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.