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Finding the Fourth Proportional to 1,047,249, 1,445,203.62 and 570,321

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Solution

The fourth proportional to 1,047,249, 1,445,203.62 and 570,321 is: 787,042.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,249 : 1,445,203.62 = 570,321 : x
  2. Step 2: Convert to fraction form
    1,047,249/1,445,203.62 = 570,321/x
  3. Step 3: Cross multiply
    1,047,249x = 1,445,203.62 × 570,321
  4. Step 4: Simplify right side
    1,047,249x = 824,229,973,762.02
  5. Step 5: Solve for x
    x = 824,229,973,762.02/1,047,249
  6. Step 6: Final answer
    x = 787,042.98

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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.