Home / 612,614.64-845,284.32-357,916.62

Finding the Fourth Proportional to 612,614.64, 845,284.32 and 357,916.62

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Solution

The fourth proportional to 612,614.64, 845,284.32 and 357,916.62 is: 493,852.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,614.64 : 845,284.32 = 357,916.62 : x
  2. Step 2: Convert to fraction form
    612,614.64/845,284.32 = 357,916.62/x
  3. Step 3: Cross multiply
    612,614.64x = 845,284.32 × 357,916.62
  4. Step 4: Simplify right side
    612,614.64x = 302,541,306,753.40
  5. Step 5: Solve for x
    x = 302,541,306,753.40/612,614.64
  6. Step 6: Final answer
    x = 493,852.56

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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.