Home / 696,282.58-960,938.03-390,359.55

Finding the Fourth Proportional to 696,282.58, 960,938.03 and 390,359.55

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Solution

The fourth proportional to 696,282.58, 960,938.03 and 390,359.55 is: 538,734.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,282.58 : 960,938.03 = 390,359.55 : x
  2. Step 2: Convert to fraction form
    696,282.58/960,938.03 = 390,359.55/x
  3. Step 3: Cross multiply
    696,282.58x = 960,938.03 × 390,359.55
  4. Step 4: Simplify right side
    696,282.58x = 375,111,341,548.10
  5. Step 5: Solve for x
    x = 375,111,341,548.10/696,282.58
  6. Step 6: Final answer
    x = 538,734.35

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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.