Home / 1,260,037.60-1,890,070.80-313,410.40

Finding the Fourth Proportional to 1,260,037.60, 1,890,070.80 and 313,410.40

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Solution

The fourth proportional to 1,260,037.60, 1,890,070.80 and 313,410.40 is: 470,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,037.60 : 1,890,070.80 = 313,410.40 : x
  2. Step 2: Convert to fraction form
    1,260,037.60/1,890,070.80 = 313,410.40/x
  3. Step 3: Cross multiply
    1,260,037.60x = 1,890,070.80 × 313,410.40
  4. Step 4: Simplify right side
    1,260,037.60x = 592,367,845,456.32
  5. Step 5: Solve for x
    x = 592,367,845,456.32/1,260,037.60
  6. Step 6: Final answer
    x = 470,119.18

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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.