Home / 676,258.36-933,024.90-389,739.28

Finding the Fourth Proportional to 676,258.36, 933,024.90 and 389,739.28

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Solution

The fourth proportional to 676,258.36, 933,024.90 and 389,739.28 is: 537,718.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,258.36 : 933,024.90 = 389,739.28 : x
  2. Step 2: Convert to fraction form
    676,258.36/933,024.90 = 389,739.28/x
  3. Step 3: Cross multiply
    676,258.36x = 933,024.90 × 389,739.28
  4. Step 4: Simplify right side
    676,258.36x = 363,636,452,748.07
  5. Step 5: Solve for x
    x = 363,636,452,748.07/676,258.36
  6. Step 6: Final answer
    x = 537,718.24

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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.