Home / 688,242.72-1,032,701.94-309,430.74

Finding the Fourth Proportional to 688,242.72, 1,032,701.94 and 309,430.74

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Solution

The fourth proportional to 688,242.72, 1,032,701.94 and 309,430.74 is: 464,298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,242.72 : 1,032,701.94 = 309,430.74 : x
  2. Step 2: Convert to fraction form
    688,242.72/1,032,701.94 = 309,430.74/x
  3. Step 3: Cross multiply
    688,242.72x = 1,032,701.94 × 309,430.74
  4. Step 4: Simplify right side
    688,242.72x = 319,549,725,493.64
  5. Step 5: Solve for x
    x = 319,549,725,493.64/688,242.72
  6. Step 6: Final answer
    x = 464,298.01

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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.