Home / 690,437.55-952,784.54-384,513.85

Finding the Fourth Proportional to 690,437.55, 952,784.54 and 384,513.85

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Solution

The fourth proportional to 690,437.55, 952,784.54 and 384,513.85 is: 530,618.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,437.55 : 952,784.54 = 384,513.85 : x
  2. Step 2: Convert to fraction form
    690,437.55/952,784.54 = 384,513.85/x
  3. Step 3: Cross multiply
    690,437.55x = 952,784.54 × 384,513.85
  4. Step 4: Simplify right side
    690,437.55x = 366,358,852,406.22
  5. Step 5: Solve for x
    x = 366,358,852,406.22/690,437.55
  6. Step 6: Final answer
    x = 530,618.37

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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.