Home / 977,136.60-1,465,850.70-346,000.80

Finding the Fourth Proportional to 977,136.60, 1,465,850.70 and 346,000.80

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Solution

The fourth proportional to 977,136.60, 1,465,850.70 and 346,000.80 is: 519,052.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,136.60 : 1,465,850.70 = 346,000.80 : x
  2. Step 2: Convert to fraction form
    977,136.60/1,465,850.70 = 346,000.80/x
  3. Step 3: Cross multiply
    977,136.60x = 1,465,850.70 × 346,000.80
  4. Step 4: Simplify right side
    977,136.60x = 507,185,514,880.56
  5. Step 5: Solve for x
    x = 507,185,514,880.56/977,136.60
  6. Step 6: Final answer
    x = 519,052.83

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Double scale
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Similar ratio
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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.