Home / 579,531.40-868,130.70-402,238.60

Finding the Fourth Proportional to 579,531.40, 868,130.70 and 402,238.60

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Solution

The fourth proportional to 579,531.40, 868,130.70 and 402,238.60 is: 602,548.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,531.40 : 868,130.70 = 402,238.60 : x
  2. Step 2: Convert to fraction form
    579,531.40/868,130.70 = 402,238.60/x
  3. Step 3: Cross multiply
    579,531.40x = 868,130.70 × 402,238.60
  4. Step 4: Simplify right side
    579,531.40x = 349,195,677,385.02
  5. Step 5: Solve for x
    x = 349,195,677,385.02/579,531.40
  6. Step 6: Final answer
    x = 602,548.33

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1.5x scale

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.