Home / 1,457,165.31-2,185,931.06-782,319.03

Finding the Fourth Proportional to 1,457,165.31, 2,185,931.06 and 782,319.03

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Solution

The fourth proportional to 1,457,165.31, 2,185,931.06 and 782,319.03 is: 1,173,576.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,165.31 : 2,185,931.06 = 782,319.03 : x
  2. Step 2: Convert to fraction form
    1,457,165.31/2,185,931.06 = 782,319.03/x
  3. Step 3: Cross multiply
    1,457,165.31x = 2,185,931.06 × 782,319.03
  4. Step 4: Simplify right side
    1,457,165.31x = 1,710,095,455,576.42
  5. Step 5: Solve for x
    x = 1,710,095,455,576.42/1,457,165.31
  6. Step 6: Final answer
    x = 1,173,576.84

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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.