Home / 648,376.56-893,688.60-433,438.20

Finding the Fourth Proportional to 648,376.56, 893,688.60 and 433,438.20

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Solution

The fourth proportional to 648,376.56, 893,688.60 and 433,438.20 is: 597,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,376.56 : 893,688.60 = 433,438.20 : x
  2. Step 2: Convert to fraction form
    648,376.56/893,688.60 = 433,438.20/x
  3. Step 3: Cross multiply
    648,376.56x = 893,688.60 × 433,438.20
  4. Step 4: Simplify right side
    648,376.56x = 387,358,778,144.52
  5. Step 5: Solve for x
    x = 387,358,778,144.52/648,376.56
  6. Step 6: Final answer
    x = 597,428.72

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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.