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Finding the Fourth Proportional to 690,763.48, 952,888.74 and 475,529.88

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Solution

The fourth proportional to 690,763.48, 952,888.74 and 475,529.88 is: 655,980.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,763.48 : 952,888.74 = 475,529.88 : x
  2. Step 2: Convert to fraction form
    690,763.48/952,888.74 = 475,529.88/x
  3. Step 3: Cross multiply
    690,763.48x = 952,888.74 × 475,529.88
  4. Step 4: Simplify right side
    690,763.48x = 453,127,068,185.55
  5. Step 5: Solve for x
    x = 453,127,068,185.55/690,763.48
  6. Step 6: Final answer
    x = 655,980.06

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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.