Home / 761,730.72-1,051,222.80-435,072.24

Finding the Fourth Proportional to 761,730.72, 1,051,222.80 and 435,072.24

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Solution

The fourth proportional to 761,730.72, 1,051,222.80 and 435,072.24 is: 600,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,730.72 : 1,051,222.80 = 435,072.24 : x
  2. Step 2: Convert to fraction form
    761,730.72/1,051,222.80 = 435,072.24/x
  3. Step 3: Cross multiply
    761,730.72x = 1,051,222.80 × 435,072.24
  4. Step 4: Simplify right side
    761,730.72x = 457,357,858,335.07
  5. Step 5: Solve for x
    x = 457,357,858,335.07/761,730.72
  6. Step 6: Final answer
    x = 600,419.34

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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.