Home / 449,386.79-620,126.28-245,396.18

Finding the Fourth Proportional to 449,386.79, 620,126.28 and 245,396.18

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Solution

The fourth proportional to 449,386.79, 620,126.28 and 245,396.18 is: 338,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,386.79 : 620,126.28 = 245,396.18 : x
  2. Step 2: Convert to fraction form
    449,386.79/620,126.28 = 245,396.18/x
  3. Step 3: Cross multiply
    449,386.79x = 620,126.28 × 245,396.18
  4. Step 4: Simplify right side
    449,386.79x = 152,176,621,779.93
  5. Step 5: Solve for x
    x = 152,176,621,779.93/449,386.79
  6. Step 6: Final answer
    x = 338,631.72

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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.