Home / 1,645,428.02-2,270,677.65-920,275.20

Finding the Fourth Proportional to 1,645,428.02, 2,270,677.65 and 920,275.20

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Solution

The fourth proportional to 1,645,428.02, 2,270,677.65 and 920,275.20 is: 1,269,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,428.02 : 2,270,677.65 = 920,275.20 : x
  2. Step 2: Convert to fraction form
    1,645,428.02/2,270,677.65 = 920,275.20/x
  3. Step 3: Cross multiply
    1,645,428.02x = 2,270,677.65 × 920,275.20
  4. Step 4: Simplify right side
    1,645,428.02x = 2,089,648,328,489.28
  5. Step 5: Solve for x
    x = 2,089,648,328,489.28/1,645,428.02
  6. Step 6: Final answer
    x = 1,269,972.50

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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.