Home / 698,772.28-1,047,411-319,124.12

Finding the Fourth Proportional to 698,772.28, 1,047,411 and 319,124.12

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Solution

The fourth proportional to 698,772.28, 1,047,411 and 319,124.12 is: 478,344.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,772.28 : 1,047,411 = 319,124.12 : x
  2. Step 2: Convert to fraction form
    698,772.28/1,047,411 = 319,124.12/x
  3. Step 3: Cross multiply
    698,772.28x = 1,047,411 × 319,124.12
  4. Step 4: Simplify right side
    698,772.28x = 334,254,113,653.32
  5. Step 5: Solve for x
    x = 334,254,113,653.32/698,772.28
  6. Step 6: Final answer
    x = 478,344.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.