Home / 977,339.40-1,465,620.30-345,928.20

Finding the Fourth Proportional to 977,339.40, 1,465,620.30 and 345,928.20

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Solution

The fourth proportional to 977,339.40, 1,465,620.30 and 345,928.20 is: 518,754.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,339.40 : 1,465,620.30 = 345,928.20 : x
  2. Step 2: Convert to fraction form
    977,339.40/1,465,620.30 = 345,928.20/x
  3. Step 3: Cross multiply
    977,339.40x = 1,465,620.30 × 345,928.20
  4. Step 4: Simplify right side
    977,339.40x = 506,999,392,262.46
  5. Step 5: Solve for x
    x = 506,999,392,262.46/977,339.40
  6. Step 6: Final answer
    x = 518,754.68

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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.