Home / 1,315,852.32-1,973,381.16-684,421.68

Finding the Fourth Proportional to 1,315,852.32, 1,973,381.16 and 684,421.68

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Solution

The fourth proportional to 1,315,852.32, 1,973,381.16 and 684,421.68 is: 1,026,425.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,852.32 : 1,973,381.16 = 684,421.68 : x
  2. Step 2: Convert to fraction form
    1,315,852.32/1,973,381.16 = 684,421.68/x
  3. Step 3: Cross multiply
    1,315,852.32x = 1,973,381.16 × 684,421.68
  4. Step 4: Simplify right side
    1,315,852.32x = 1,350,624,848,807.55
  5. Step 5: Solve for x
    x = 1,350,624,848,807.55/1,315,852.32
  6. Step 6: Final answer
    x = 1,026,425.86

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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.