Home / 761,457.84-1,050,818.04-421,931.76

Finding the Fourth Proportional to 761,457.84, 1,050,818.04 and 421,931.76

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Solution

The fourth proportional to 761,457.84, 1,050,818.04 and 421,931.76 is: 582,269.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,457.84 : 1,050,818.04 = 421,931.76 : x
  2. Step 2: Convert to fraction form
    761,457.84/1,050,818.04 = 421,931.76/x
  3. Step 3: Cross multiply
    761,457.84x = 1,050,818.04 × 421,931.76
  4. Step 4: Simplify right side
    761,457.84x = 443,373,505,056.95
  5. Step 5: Solve for x
    x = 443,373,505,056.95/761,457.84
  6. Step 6: Final answer
    x = 582,269.28

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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.