Home / 977,320.40-1,464,911.40-345,909.20

Finding the Fourth Proportional to 977,320.40, 1,464,911.40 and 345,909.20

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Solution

The fourth proportional to 977,320.40, 1,464,911.40 and 345,909.20 is: 518,485.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,320.40 : 1,464,911.40 = 345,909.20 : x
  2. Step 2: Convert to fraction form
    977,320.40/1,464,911.40 = 345,909.20/x
  3. Step 3: Cross multiply
    977,320.40x = 1,464,911.40 × 345,909.20
  4. Step 4: Simplify right side
    977,320.40x = 506,726,330,444.88
  5. Step 5: Solve for x
    x = 506,726,330,444.88/977,320.40
  6. Step 6: Final answer
    x = 518,485.37

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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.