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Finding the Fourth Proportional to 585,303.92, 807,720.28 and 317,031.28

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Solution

The fourth proportional to 585,303.92, 807,720.28 and 317,031.28 is: 437,503.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,303.92 : 807,720.28 = 317,031.28 : x
  2. Step 2: Convert to fraction form
    585,303.92/807,720.28 = 317,031.28/x
  3. Step 3: Cross multiply
    585,303.92x = 807,720.28 × 317,031.28
  4. Step 4: Simplify right side
    585,303.92x = 256,072,594,250.36
  5. Step 5: Solve for x
    x = 256,072,594,250.36/585,303.92
  6. Step 6: Final answer
    x = 437,503.64

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1.5x scale

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.