Home / 761,176-1,050,422.88-421,666.24

Finding the Fourth Proportional to 761,176, 1,050,422.88 and 421,666.24

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Solution

The fourth proportional to 761,176, 1,050,422.88 and 421,666.24 is: 581,899.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,176 : 1,050,422.88 = 421,666.24 : x
  2. Step 2: Convert to fraction form
    761,176/1,050,422.88 = 421,666.24/x
  3. Step 3: Cross multiply
    761,176x = 1,050,422.88 × 421,666.24
  4. Step 4: Simplify right side
    761,176x = 442,927,866,219.57
  5. Step 5: Solve for x
    x = 442,927,866,219.57/761,176
  6. Step 6: Final answer
    x = 581,899.41

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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.