Home / 749,412.80-1,123,730.40-275,854.40

Finding the Fourth Proportional to 749,412.80, 1,123,730.40 and 275,854.40

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Solution

The fourth proportional to 749,412.80, 1,123,730.40 and 275,854.40 is: 413,638.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,412.80 : 1,123,730.40 = 275,854.40 : x
  2. Step 2: Convert to fraction form
    749,412.80/1,123,730.40 = 275,854.40/x
  3. Step 3: Cross multiply
    749,412.80x = 1,123,730.40 × 275,854.40
  4. Step 4: Simplify right side
    749,412.80x = 309,985,975,253.76
  5. Step 5: Solve for x
    x = 309,985,975,253.76/749,412.80
  6. Step 6: Final answer
    x = 413,638.49

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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.