Home / 731,920.21-1,009,929.36-459,795.37

Finding the Fourth Proportional to 731,920.21, 1,009,929.36 and 459,795.37

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Solution

The fourth proportional to 731,920.21, 1,009,929.36 and 459,795.37 is: 634,441.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,920.21 : 1,009,929.36 = 459,795.37 : x
  2. Step 2: Convert to fraction form
    731,920.21/1,009,929.36 = 459,795.37/x
  3. Step 3: Cross multiply
    731,920.21x = 1,009,929.36 × 459,795.37
  4. Step 4: Simplify right side
    731,920.21x = 464,360,838,705.42
  5. Step 5: Solve for x
    x = 464,360,838,705.42/731,920.21
  6. Step 6: Final answer
    x = 634,441.89

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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.