Home / 817,904.76-1,226,666.34-312,280.08

Finding the Fourth Proportional to 817,904.76, 1,226,666.34 and 312,280.08

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Solution

The fourth proportional to 817,904.76, 1,226,666.34 and 312,280.08 is: 468,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,904.76 : 1,226,666.34 = 312,280.08 : x
  2. Step 2: Convert to fraction form
    817,904.76/1,226,666.34 = 312,280.08/x
  3. Step 3: Cross multiply
    817,904.76x = 1,226,666.34 × 312,280.08
  4. Step 4: Simplify right side
    817,904.76x = 383,063,462,788.51
  5. Step 5: Solve for x
    x = 383,063,462,788.51/817,904.76
  6. Step 6: Final answer
    x = 468,347.27

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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.