Home / 712,848.60-1,069,471.08-579,398.40

Finding the Fourth Proportional to 712,848.60, 1,069,471.08 and 579,398.40

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Solution

The fourth proportional to 712,848.60, 1,069,471.08 and 579,398.40 is: 869,258.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,848.60 : 1,069,471.08 = 579,398.40 : x
  2. Step 2: Convert to fraction form
    712,848.60/1,069,471.08 = 579,398.40/x
  3. Step 3: Cross multiply
    712,848.60x = 1,069,471.08 × 579,398.40
  4. Step 4: Simplify right side
    712,848.60x = 619,649,832,598.27
  5. Step 5: Solve for x
    x = 619,649,832,598.27/712,848.60
  6. Step 6: Final answer
    x = 869,258.68

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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.