Home / 761,476.05-1,050,836.63-455,565.38

Finding the Fourth Proportional to 761,476.05, 1,050,836.63 and 455,565.38

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Solution

The fourth proportional to 761,476.05, 1,050,836.63 and 455,565.38 is: 628,680.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,476.05 : 1,050,836.63 = 455,565.38 : x
  2. Step 2: Convert to fraction form
    761,476.05/1,050,836.63 = 455,565.38/x
  3. Step 3: Cross multiply
    761,476.05x = 1,050,836.63 × 455,565.38
  4. Step 4: Simplify right side
    761,476.05x = 478,724,781,131.86
  5. Step 5: Solve for x
    x = 478,724,781,131.86/761,476.05
  6. Step 6: Final answer
    x = 628,680.02

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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.