Home / 665,904.57-919,038.24-375,575.70

Finding the Fourth Proportional to 665,904.57, 919,038.24 and 375,575.70

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Solution

The fourth proportional to 665,904.57, 919,038.24 and 375,575.70 is: 518,345.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,904.57 : 919,038.24 = 375,575.70 : x
  2. Step 2: Convert to fraction form
    665,904.57/919,038.24 = 375,575.70/x
  3. Step 3: Cross multiply
    665,904.57x = 919,038.24 × 375,575.70
  4. Step 4: Simplify right side
    665,904.57x = 345,168,430,314.77
  5. Step 5: Solve for x
    x = 345,168,430,314.77/665,904.57
  6. Step 6: Final answer
    x = 518,345.19

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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.