Home / 912,907.09-1,369,485.24-380,303.56

Finding the Fourth Proportional to 912,907.09, 1,369,485.24 and 380,303.56

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Solution

The fourth proportional to 912,907.09, 1,369,485.24 and 380,303.56 is: 570,507.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,907.09 : 1,369,485.24 = 380,303.56 : x
  2. Step 2: Convert to fraction form
    912,907.09/1,369,485.24 = 380,303.56/x
  3. Step 3: Cross multiply
    912,907.09x = 1,369,485.24 × 380,303.56
  4. Step 4: Simplify right side
    912,907.09x = 520,820,103,390.51
  5. Step 5: Solve for x
    x = 520,820,103,390.51/912,907.09
  6. Step 6: Final answer
    x = 570,507.24

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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.