Home / 761,368.32-1,050,688.80-421,842.24

Finding the Fourth Proportional to 761,368.32, 1,050,688.80 and 421,842.24

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Solution

The fourth proportional to 761,368.32, 1,050,688.80 and 421,842.24 is: 582,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,368.32 : 1,050,688.80 = 421,842.24 : x
  2. Step 2: Convert to fraction form
    761,368.32/1,050,688.80 = 421,842.24/x
  3. Step 3: Cross multiply
    761,368.32x = 1,050,688.80 × 421,842.24
  4. Step 4: Simplify right side
    761,368.32x = 443,224,916,934.91
  5. Step 5: Solve for x
    x = 443,224,916,934.91/761,368.32
  6. Step 6: Final answer
    x = 582,142.58

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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.