Home / 487,342.66-672,717.81-436,263.40

Finding the Fourth Proportional to 487,342.66, 672,717.81 and 436,263.40

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Solution

The fourth proportional to 487,342.66, 672,717.81 and 436,263.40 is: 602,209.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,342.66 : 672,717.81 = 436,263.40 : x
  2. Step 2: Convert to fraction form
    487,342.66/672,717.81 = 436,263.40/x
  3. Step 3: Cross multiply
    487,342.66x = 672,717.81 × 436,263.40
  4. Step 4: Simplify right side
    487,342.66x = 293,482,159,031.15
  5. Step 5: Solve for x
    x = 293,482,159,031.15/487,342.66
  6. Step 6: Final answer
    x = 602,209.05

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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.