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Finding the Fourth Proportional to 652,374, 900,277.74 and 380,628.72

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Solution

The fourth proportional to 652,374, 900,277.74 and 380,628.72 is: 525,268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,374 : 900,277.74 = 380,628.72 : x
  2. Step 2: Convert to fraction form
    652,374/900,277.74 = 380,628.72/x
  3. Step 3: Cross multiply
    652,374x = 900,277.74 × 380,628.72
  4. Step 4: Simplify right side
    652,374x = 342,671,563,820.69
  5. Step 5: Solve for x
    x = 342,671,563,820.69/652,374
  6. Step 6: Final answer
    x = 525,268.58

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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.