Home / 761,085.75-1,050,298.34-421,575.87

Finding the Fourth Proportional to 761,085.75, 1,050,298.34 and 421,575.87

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Solution

The fourth proportional to 761,085.75, 1,050,298.34 and 421,575.87 is: 581,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,085.75 : 1,050,298.34 = 421,575.87 : x
  2. Step 2: Convert to fraction form
    761,085.75/1,050,298.34 = 421,575.87/x
  3. Step 3: Cross multiply
    761,085.75x = 1,050,298.34 × 421,575.87
  4. Step 4: Simplify right side
    761,085.75x = 442,780,434,337.18
  5. Step 5: Solve for x
    x = 442,780,434,337.18/761,085.75
  6. Step 6: Final answer
    x = 581,774.70

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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.