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Finding the Fourth Proportional to 560,409.32, 772,461.41 and 379,055.07

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Solution

The fourth proportional to 560,409.32, 772,461.41 and 379,055.07 is: 522,484.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,409.32 : 772,461.41 = 379,055.07 : x
  2. Step 2: Convert to fraction form
    560,409.32/772,461.41 = 379,055.07/x
  3. Step 3: Cross multiply
    560,409.32x = 772,461.41 × 379,055.07
  4. Step 4: Simplify right side
    560,409.32x = 292,805,411,944.57
  5. Step 5: Solve for x
    x = 292,805,411,944.57/560,409.32
  6. Step 6: Final answer
    x = 522,484.91

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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.