Home / 497,845.26-745,439.28-260,689.40

Finding the Fourth Proportional to 497,845.26, 745,439.28 and 260,689.40

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Solution

The fourth proportional to 497,845.26, 745,439.28 and 260,689.40 is: 390,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,845.26 : 745,439.28 = 260,689.40 : x
  2. Step 2: Convert to fraction form
    497,845.26/745,439.28 = 260,689.40/x
  3. Step 3: Cross multiply
    497,845.26x = 745,439.28 × 260,689.40
  4. Step 4: Simplify right side
    497,845.26x = 194,328,118,639.63
  5. Step 5: Solve for x
    x = 194,328,118,639.63/497,845.26
  6. Step 6: Final answer
    x = 390,338.39

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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.