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Finding the Fourth Proportional to 647,328.59, 893,313.51 and 360,848.67

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Solution

The fourth proportional to 647,328.59, 893,313.51 and 360,848.67 is: 497,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,328.59 : 893,313.51 = 360,848.67 : x
  2. Step 2: Convert to fraction form
    647,328.59/893,313.51 = 360,848.67/x
  3. Step 3: Cross multiply
    647,328.59x = 893,313.51 × 360,848.67
  4. Step 4: Simplify right side
    647,328.59x = 322,350,994,328.09
  5. Step 5: Solve for x
    x = 322,350,994,328.09/647,328.59
  6. Step 6: Final answer
    x = 497,971.20

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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.