Home / 830,071.68-1,242,712.76-487,476.92

Finding the Fourth Proportional to 830,071.68, 1,242,712.76 and 487,476.92

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Solution

The fourth proportional to 830,071.68, 1,242,712.76 and 487,476.92 is: 729,809.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,071.68 : 1,242,712.76 = 487,476.92 : x
  2. Step 2: Convert to fraction form
    830,071.68/1,242,712.76 = 487,476.92/x
  3. Step 3: Cross multiply
    830,071.68x = 1,242,712.76 × 487,476.92
  4. Step 4: Simplify right side
    830,071.68x = 605,793,780,038.55
  5. Step 5: Solve for x
    x = 605,793,780,038.55/830,071.68
  6. Step 6: Final answer
    x = 729,809.00

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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.