Home / 1,291,313.90-1,937,719.35-651,667.66

Finding the Fourth Proportional to 1,291,313.90, 1,937,719.35 and 651,667.66

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Solution

The fourth proportional to 1,291,313.90, 1,937,719.35 and 651,667.66 is: 977,879.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,313.90 : 1,937,719.35 = 651,667.66 : x
  2. Step 2: Convert to fraction form
    1,291,313.90/1,937,719.35 = 651,667.66/x
  3. Step 3: Cross multiply
    1,291,313.90x = 1,937,719.35 × 651,667.66
  4. Step 4: Simplify right side
    1,291,313.90x = 1,262,749,035,602.79
  5. Step 5: Solve for x
    x = 1,262,749,035,602.79/1,291,313.90
  6. Step 6: Final answer
    x = 977,879.22

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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.