Home / 742,658.31-1,112,068.93-512,557.32

Finding the Fourth Proportional to 742,658.31, 1,112,068.93 and 512,557.32

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Solution

The fourth proportional to 742,658.31, 1,112,068.93 and 512,557.32 is: 767,511.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,658.31 : 1,112,068.93 = 512,557.32 : x
  2. Step 2: Convert to fraction form
    742,658.31/1,112,068.93 = 512,557.32/x
  3. Step 3: Cross multiply
    742,658.31x = 1,112,068.93 × 512,557.32
  4. Step 4: Simplify right side
    742,658.31x = 569,999,063,502.49
  5. Step 5: Solve for x
    x = 569,999,063,502.49/742,658.31
  6. Step 6: Final answer
    x = 767,511.86

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1.5x scale

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.