Home / 691,438.92-1,037,643.18-286,637.37

Finding the Fourth Proportional to 691,438.92, 1,037,643.18 and 286,637.37

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Solution

The fourth proportional to 691,438.92, 1,037,643.18 and 286,637.37 is: 430,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,438.92 : 1,037,643.18 = 286,637.37 : x
  2. Step 2: Convert to fraction form
    691,438.92/1,037,643.18 = 286,637.37/x
  3. Step 3: Cross multiply
    691,438.92x = 1,037,643.18 × 286,637.37
  4. Step 4: Simplify right side
    691,438.92x = 297,427,312,113.64
  5. Step 5: Solve for x
    x = 297,427,312,113.64/691,438.92
  6. Step 6: Final answer
    x = 430,157.03

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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.