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Finding the Fourth Proportional to 648,373.56, 893,684.46 and 433,435.20

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Solution

The fourth proportional to 648,373.56, 893,684.46 and 433,435.20 is: 597,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,373.56 : 893,684.46 = 433,435.20 : x
  2. Step 2: Convert to fraction form
    648,373.56/893,684.46 = 433,435.20/x
  3. Step 3: Cross multiply
    648,373.56x = 893,684.46 × 433,435.20
  4. Step 4: Simplify right side
    648,373.56x = 387,354,302,656.99
  5. Step 5: Solve for x
    x = 387,354,302,656.99/648,373.56
  6. Step 6: Final answer
    x = 597,424.58

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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.