Home / 920,073.60-1,379,289.60-358,977.60

Finding the Fourth Proportional to 920,073.60, 1,379,289.60 and 358,977.60

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Solution

The fourth proportional to 920,073.60, 1,379,289.60 and 358,977.60 is: 538,146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,073.60 : 1,379,289.60 = 358,977.60 : x
  2. Step 2: Convert to fraction form
    920,073.60/1,379,289.60 = 358,977.60/x
  3. Step 3: Cross multiply
    920,073.60x = 1,379,289.60 × 358,977.60
  4. Step 4: Simplify right side
    920,073.60x = 495,134,070,312.96
  5. Step 5: Solve for x
    x = 495,134,070,312.96/920,073.60
  6. Step 6: Final answer
    x = 538,146.16

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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.