Home / 776,675.19-1,071,259.64-518,421.92

Finding the Fourth Proportional to 776,675.19, 1,071,259.64 and 518,421.92

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Solution

The fourth proportional to 776,675.19, 1,071,259.64 and 518,421.92 is: 715,053.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,675.19 : 1,071,259.64 = 518,421.92 : x
  2. Step 2: Convert to fraction form
    776,675.19/1,071,259.64 = 518,421.92/x
  3. Step 3: Cross multiply
    776,675.19x = 1,071,259.64 × 518,421.92
  4. Step 4: Simplify right side
    776,675.19x = 555,364,482,065.46
  5. Step 5: Solve for x
    x = 555,364,482,065.46/776,675.19
  6. Step 6: Final answer
    x = 715,053.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.