Home / 761,272.81-1,050,471.71-421,656.01

Finding the Fourth Proportional to 761,272.81, 1,050,471.71 and 421,656.01

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Solution

The fourth proportional to 761,272.81, 1,050,471.71 and 421,656.01 is: 581,838.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,272.81 : 1,050,471.71 = 421,656.01 : x
  2. Step 2: Convert to fraction form
    761,272.81/1,050,471.71 = 421,656.01/x
  3. Step 3: Cross multiply
    761,272.81x = 1,050,471.71 × 421,656.01
  4. Step 4: Simplify right side
    761,272.81x = 442,937,704,604.12
  5. Step 5: Solve for x
    x = 442,937,704,604.12/761,272.81
  6. Step 6: Final answer
    x = 581,838.34

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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.