Home / 546,938.42-820,407.64-147,579.20

Finding the Fourth Proportional to 546,938.42, 820,407.64 and 147,579.20

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Solution

The fourth proportional to 546,938.42, 820,407.64 and 147,579.20 is: 221,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,938.42 : 820,407.64 = 147,579.20 : x
  2. Step 2: Convert to fraction form
    546,938.42/820,407.64 = 147,579.20/x
  3. Step 3: Cross multiply
    546,938.42x = 820,407.64 × 147,579.20
  4. Step 4: Simplify right side
    546,938.42x = 121,075,103,185.09
  5. Step 5: Solve for x
    x = 121,075,103,185.09/546,938.42
  6. Step 6: Final answer
    x = 221,368.80

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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.