Home / 676,629.40-933,848.04-390,093.52

Finding the Fourth Proportional to 676,629.40, 933,848.04 and 390,093.52

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Solution

The fourth proportional to 676,629.40, 933,848.04 and 390,093.52 is: 538,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,629.40 : 933,848.04 = 390,093.52 : x
  2. Step 2: Convert to fraction form
    676,629.40/933,848.04 = 390,093.52/x
  3. Step 3: Cross multiply
    676,629.40x = 933,848.04 × 390,093.52
  4. Step 4: Simplify right side
    676,629.40x = 364,288,069,068.70
  5. Step 5: Solve for x
    x = 364,288,069,068.70/676,629.40
  6. Step 6: Final answer
    x = 538,386.40

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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.