Home / 929,852.46-1,395,316.80-390,060.40

Finding the Fourth Proportional to 929,852.46, 1,395,316.80 and 390,060.40

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Solution

The fourth proportional to 929,852.46, 1,395,316.80 and 390,060.40 is: 585,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,852.46 : 1,395,316.80 = 390,060.40 : x
  2. Step 2: Convert to fraction form
    929,852.46/1,395,316.80 = 390,060.40/x
  3. Step 3: Cross multiply
    929,852.46x = 1,395,316.80 × 390,060.40
  4. Step 4: Simplify right side
    929,852.46x = 544,257,829,134.72
  5. Step 5: Solve for x
    x = 544,257,829,134.72/929,852.46
  6. Step 6: Final answer
    x = 585,316.33

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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.