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Finding the Fourth Proportional to 455,846.60, 683,769.90 and 306,547.40

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Solution

The fourth proportional to 455,846.60, 683,769.90 and 306,547.40 is: 459,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,846.60 : 683,769.90 = 306,547.40 : x
  2. Step 2: Convert to fraction form
    455,846.60/683,769.90 = 306,547.40/x
  3. Step 3: Cross multiply
    455,846.60x = 683,769.90 × 306,547.40
  4. Step 4: Simplify right side
    455,846.60x = 209,607,885,043.26
  5. Step 5: Solve for x
    x = 209,607,885,043.26/455,846.60
  6. Step 6: Final answer
    x = 459,821.10

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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.