Home / 977,128.60-1,465,765.80-345,960.40

Finding the Fourth Proportional to 977,128.60, 1,465,765.80 and 345,960.40

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Solution

The fourth proportional to 977,128.60, 1,465,765.80 and 345,960.40 is: 518,966.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,128.60 : 1,465,765.80 = 345,960.40 : x
  2. Step 2: Convert to fraction form
    977,128.60/1,465,765.80 = 345,960.40/x
  3. Step 3: Cross multiply
    977,128.60x = 1,465,765.80 × 345,960.40
  4. Step 4: Simplify right side
    977,128.60x = 507,096,922,474.32
  5. Step 5: Solve for x
    x = 507,096,922,474.32/977,128.60
  6. Step 6: Final answer
    x = 518,966.41

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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.