Home / 1,989,355.02-2,984,614.80-641,490.51

Finding the Fourth Proportional to 1,989,355.02, 2,984,614.80 and 641,490.51

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Solution

The fourth proportional to 1,989,355.02, 2,984,614.80 and 641,490.51 is: 962,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,355.02 : 2,984,614.80 = 641,490.51 : x
  2. Step 2: Convert to fraction form
    1,989,355.02/2,984,614.80 = 641,490.51/x
  3. Step 3: Cross multiply
    1,989,355.02x = 2,984,614.80 × 641,490.51
  4. Step 4: Simplify right side
    1,989,355.02x = 1,914,602,070,205.55
  5. Step 5: Solve for x
    x = 1,914,602,070,205.55/1,989,355.02
  6. Step 6: Final answer
    x = 962,423.52

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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.