Home / 455,931.60-683,897.40-140,485.20

Finding the Fourth Proportional to 455,931.60, 683,897.40 and 140,485.20

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Solution

The fourth proportional to 455,931.60, 683,897.40 and 140,485.20 is: 210,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,931.60 : 683,897.40 = 140,485.20 : x
  2. Step 2: Convert to fraction form
    455,931.60/683,897.40 = 140,485.20/x
  3. Step 3: Cross multiply
    455,931.60x = 683,897.40 × 140,485.20
  4. Step 4: Simplify right side
    455,931.60x = 96,077,463,018.48
  5. Step 5: Solve for x
    x = 96,077,463,018.48/455,931.60
  6. Step 6: Final answer
    x = 210,727.80

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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.