Home / 1,297,898.40-1,946,847.60-766,457.40

Finding the Fourth Proportional to 1,297,898.40, 1,946,847.60 and 766,457.40

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Solution

The fourth proportional to 1,297,898.40, 1,946,847.60 and 766,457.40 is: 1,149,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,898.40 : 1,946,847.60 = 766,457.40 : x
  2. Step 2: Convert to fraction form
    1,297,898.40/1,946,847.60 = 766,457.40/x
  3. Step 3: Cross multiply
    1,297,898.40x = 1,946,847.60 × 766,457.40
  4. Step 4: Simplify right side
    1,297,898.40x = 1,492,175,749,692.24
  5. Step 5: Solve for x
    x = 1,492,175,749,692.24/1,297,898.40
  6. Step 6: Final answer
    x = 1,149,686.10

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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.