Home / 1,121,830.60-1,683,329.10-490,808.20

Finding the Fourth Proportional to 1,121,830.60, 1,683,329.10 and 490,808.20

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Solution

The fourth proportional to 1,121,830.60, 1,683,329.10 and 490,808.20 is: 736,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,830.60 : 1,683,329.10 = 490,808.20 : x
  2. Step 2: Convert to fraction form
    1,121,830.60/1,683,329.10 = 490,808.20/x
  3. Step 3: Cross multiply
    1,121,830.60x = 1,683,329.10 × 490,808.20
  4. Step 4: Simplify right side
    1,121,830.60x = 826,191,725,578.62
  5. Step 5: Solve for x
    x = 826,191,725,578.62/1,121,830.60
  6. Step 6: Final answer
    x = 736,467.45

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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.