Home / 935,370.81-1,290,812.63-505,650.96

Finding the Fourth Proportional to 935,370.81, 1,290,812.63 and 505,650.96

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Solution

The fourth proportional to 935,370.81, 1,290,812.63 and 505,650.96 is: 697,798.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,370.81 : 1,290,812.63 = 505,650.96 : x
  2. Step 2: Convert to fraction form
    935,370.81/1,290,812.63 = 505,650.96/x
  3. Step 3: Cross multiply
    935,370.81x = 1,290,812.63 × 505,650.96
  4. Step 4: Simplify right side
    935,370.81x = 652,700,643,011.37
  5. Step 5: Solve for x
    x = 652,700,643,011.37/935,370.81
  6. Step 6: Final answer
    x = 697,798.82

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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.