Home / 920,343.02-1,270,058.20-538,434.50

Finding the Fourth Proportional to 920,343.02, 1,270,058.20 and 538,434.50

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Solution

The fourth proportional to 920,343.02, 1,270,058.20 and 538,434.50 is: 743,030.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,343.02 : 1,270,058.20 = 538,434.50 : x
  2. Step 2: Convert to fraction form
    920,343.02/1,270,058.20 = 538,434.50/x
  3. Step 3: Cross multiply
    920,343.02x = 1,270,058.20 × 538,434.50
  4. Step 4: Simplify right side
    920,343.02x = 683,843,144,191.52
  5. Step 5: Solve for x
    x = 683,843,144,191.52/920,343.02
  6. Step 6: Final answer
    x = 743,030.73

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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.