Home / 920,400.60-1,380,037.14-358,779

Finding the Fourth Proportional to 920,400.60, 1,380,037.14 and 358,779

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Solution

The fourth proportional to 920,400.60, 1,380,037.14 and 358,779 is: 537,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,400.60 : 1,380,037.14 = 358,779 : x
  2. Step 2: Convert to fraction form
    920,400.60/1,380,037.14 = 358,779/x
  3. Step 3: Cross multiply
    920,400.60x = 1,380,037.14 × 358,779
  4. Step 4: Simplify right side
    920,400.60x = 495,128,345,052.06
  5. Step 5: Solve for x
    x = 495,128,345,052.06/920,400.60
  6. Step 6: Final answer
    x = 537,948.74

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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.