Home / 977,135.60-1,465,776.30-345,967.40

Finding the Fourth Proportional to 977,135.60, 1,465,776.30 and 345,967.40

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Solution

The fourth proportional to 977,135.60, 1,465,776.30 and 345,967.40 is: 518,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,135.60 : 1,465,776.30 = 345,967.40 : x
  2. Step 2: Convert to fraction form
    977,135.60/1,465,776.30 = 345,967.40/x
  3. Step 3: Cross multiply
    977,135.60x = 1,465,776.30 × 345,967.40
  4. Step 4: Simplify right side
    977,135.60x = 507,110,815,492.62
  5. Step 5: Solve for x
    x = 507,110,815,492.62/977,135.60
  6. Step 6: Final answer
    x = 518,976.91

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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.