Home / 690,545.96-952,979.16-380,461.16

Finding the Fourth Proportional to 690,545.96, 952,979.16 and 380,461.16

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Solution

The fourth proportional to 690,545.96, 952,979.16 and 380,461.16 is: 525,050.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,545.96 : 952,979.16 = 380,461.16 : x
  2. Step 2: Convert to fraction form
    690,545.96/952,979.16 = 380,461.16/x
  3. Step 3: Cross multiply
    690,545.96x = 952,979.16 × 380,461.16
  4. Step 4: Simplify right side
    690,545.96x = 362,571,556,669.43
  5. Step 5: Solve for x
    x = 362,571,556,669.43/690,545.96
  6. Step 6: Final answer
    x = 525,050.58

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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.