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Finding the Fourth Proportional to 604,973.80, 907,460.70 and 210,989.80

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Solution

The fourth proportional to 604,973.80, 907,460.70 and 210,989.80 is: 316,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,973.80 : 907,460.70 = 210,989.80 : x
  2. Step 2: Convert to fraction form
    604,973.80/907,460.70 = 210,989.80/x
  3. Step 3: Cross multiply
    604,973.80x = 907,460.70 × 210,989.80
  4. Step 4: Simplify right side
    604,973.80x = 191,464,951,600.86
  5. Step 5: Solve for x
    x = 191,464,951,600.86/604,973.80
  6. Step 6: Final answer
    x = 316,484.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.