Home / 749,574.45-1,034,409.51-405,410.72

Finding the Fourth Proportional to 749,574.45, 1,034,409.51 and 405,410.72

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Solution

The fourth proportional to 749,574.45, 1,034,409.51 and 405,410.72 is: 559,465.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,574.45 : 1,034,409.51 = 405,410.72 : x
  2. Step 2: Convert to fraction form
    749,574.45/1,034,409.51 = 405,410.72/x
  3. Step 3: Cross multiply
    749,574.45x = 1,034,409.51 × 405,410.72
  4. Step 4: Simplify right side
    749,574.45x = 419,360,699,051.90
  5. Step 5: Solve for x
    x = 419,360,699,051.90/749,574.45
  6. Step 6: Final answer
    x = 559,465.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.