Home / 1,070,188.77-1,605,312.37-312,011.91

Finding the Fourth Proportional to 1,070,188.77, 1,605,312.37 and 312,011.91

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Solution

The fourth proportional to 1,070,188.77, 1,605,312.37 and 312,011.91 is: 468,026.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,188.77 : 1,605,312.37 = 312,011.91 : x
  2. Step 2: Convert to fraction form
    1,070,188.77/1,605,312.37 = 312,011.91/x
  3. Step 3: Cross multiply
    1,070,188.77x = 1,605,312.37 × 312,011.91
  4. Step 4: Simplify right side
    1,070,188.77x = 500,876,581,357.81
  5. Step 5: Solve for x
    x = 500,876,581,357.81/1,070,188.77
  6. Step 6: Final answer
    x = 468,026.39

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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.