Home / 1,931,813.40-2,898,108.90-1,618,440.60

Finding the Fourth Proportional to 1,931,813.40, 2,898,108.90 and 1,618,440.60

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Solution

The fourth proportional to 1,931,813.40, 2,898,108.90 and 1,618,440.60 is: 2,427,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,813.40 : 2,898,108.90 = 1,618,440.60 : x
  2. Step 2: Convert to fraction form
    1,931,813.40/2,898,108.90 = 1,618,440.60/x
  3. Step 3: Cross multiply
    1,931,813.40x = 2,898,108.90 × 1,618,440.60
  4. Step 4: Simplify right side
    1,931,813.40x = 4,690,417,106,981.34
  5. Step 5: Solve for x
    x = 4,690,417,106,981.34/1,931,813.40
  6. Step 6: Final answer
    x = 2,427,986.63

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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.