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Finding the Fourth Proportional to 605,931.10, 908,313.45 and 470,920.30

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Solution

The fourth proportional to 605,931.10, 908,313.45 and 470,920.30 is: 705,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,931.10 : 908,313.45 = 470,920.30 : x
  2. Step 2: Convert to fraction form
    605,931.10/908,313.45 = 470,920.30/x
  3. Step 3: Cross multiply
    605,931.10x = 908,313.45 × 470,920.30
  4. Step 4: Simplify right side
    605,931.10x = 427,743,242,368.04
  5. Step 5: Solve for x
    x = 427,743,242,368.04/605,931.10
  6. Step 6: Final answer
    x = 705,927.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.