Home / 1,128,155.04-1,692,238.40-380,207.52

Finding the Fourth Proportional to 1,128,155.04, 1,692,238.40 and 380,207.52

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Solution

The fourth proportional to 1,128,155.04, 1,692,238.40 and 380,207.52 is: 570,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,155.04 : 1,692,238.40 = 380,207.52 : x
  2. Step 2: Convert to fraction form
    1,128,155.04/1,692,238.40 = 380,207.52/x
  3. Step 3: Cross multiply
    1,128,155.04x = 1,692,238.40 × 380,207.52
  4. Step 4: Simplify right side
    1,128,155.04x = 643,401,765,312.77
  5. Step 5: Solve for x
    x = 643,401,765,312.77/1,128,155.04
  6. Step 6: Final answer
    x = 570,313.25

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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.