Home / 857,438.29-1,183,312.08-475,456.87

Finding the Fourth Proportional to 857,438.29, 1,183,312.08 and 475,456.87

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Solution

The fourth proportional to 857,438.29, 1,183,312.08 and 475,456.87 is: 656,156.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,438.29 : 1,183,312.08 = 475,456.87 : x
  2. Step 2: Convert to fraction form
    857,438.29/1,183,312.08 = 475,456.87/x
  3. Step 3: Cross multiply
    857,438.29x = 1,183,312.08 × 475,456.87
  4. Step 4: Simplify right side
    857,438.29x = 562,613,849,496.15
  5. Step 5: Solve for x
    x = 562,613,849,496.15/857,438.29
  6. Step 6: Final answer
    x = 656,156.67

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1.5x scale

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.