Home / 610,479.90-841,577.31-428,638.14

Finding the Fourth Proportional to 610,479.90, 841,577.31 and 428,638.14

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Solution

The fourth proportional to 610,479.90, 841,577.31 and 428,638.14 is: 590,899.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,479.90 : 841,577.31 = 428,638.14 : x
  2. Step 2: Convert to fraction form
    610,479.90/841,577.31 = 428,638.14/x
  3. Step 3: Cross multiply
    610,479.90x = 841,577.31 × 428,638.14
  4. Step 4: Simplify right side
    610,479.90x = 360,732,132,824.60
  5. Step 5: Solve for x
    x = 360,732,132,824.60/610,479.90
  6. Step 6: Final answer
    x = 590,899.28

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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.