Home / 642,617.10-963,925.65-618,122.70

Finding the Fourth Proportional to 642,617.10, 963,925.65 and 618,122.70

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Solution

The fourth proportional to 642,617.10, 963,925.65 and 618,122.70 is: 927,184.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,617.10 : 963,925.65 = 618,122.70 : x
  2. Step 2: Convert to fraction form
    642,617.10/963,925.65 = 618,122.70/x
  3. Step 3: Cross multiply
    642,617.10x = 963,925.65 × 618,122.70
  4. Step 4: Simplify right side
    642,617.10x = 595,824,325,377.26
  5. Step 5: Solve for x
    x = 595,824,325,377.26/642,617.10
  6. Step 6: Final answer
    x = 927,184.05

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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.