Home / 875,456.60-1,312,407.30-520,093.40

Finding the Fourth Proportional to 875,456.60, 1,312,407.30 and 520,093.40

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Solution

The fourth proportional to 875,456.60, 1,312,407.30 and 520,093.40 is: 779,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,456.60 : 1,312,407.30 = 520,093.40 : x
  2. Step 2: Convert to fraction form
    875,456.60/1,312,407.30 = 520,093.40/x
  3. Step 3: Cross multiply
    875,456.60x = 1,312,407.30 × 520,093.40
  4. Step 4: Simplify right side
    875,456.60x = 682,574,374,841.82
  5. Step 5: Solve for x
    x = 682,574,374,841.82/875,456.60
  6. Step 6: Final answer
    x = 779,678.14

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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.