Home / 920,220.80-1,377,220.80-808,246.40

Finding the Fourth Proportional to 920,220.80, 1,377,220.80 and 808,246.40

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Solution

The fourth proportional to 920,220.80, 1,377,220.80 and 808,246.40 is: 1,209,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,220.80 : 1,377,220.80 = 808,246.40 : x
  2. Step 2: Convert to fraction form
    920,220.80/1,377,220.80 = 808,246.40/x
  3. Step 3: Cross multiply
    920,220.80x = 1,377,220.80 × 808,246.40
  4. Step 4: Simplify right side
    920,220.80x = 1,113,133,753,605.12
  5. Step 5: Solve for x
    x = 1,113,133,753,605.12/920,220.80
  6. Step 6: Final answer
    x = 1,209,637.68

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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.