Home / 916,529.40-1,264,811.27-508,631.52

Finding the Fourth Proportional to 916,529.40, 1,264,811.27 and 508,631.52

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Solution

The fourth proportional to 916,529.40, 1,264,811.27 and 508,631.52 is: 701,911.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,529.40 : 1,264,811.27 = 508,631.52 : x
  2. Step 2: Convert to fraction form
    916,529.40/1,264,811.27 = 508,631.52/x
  3. Step 3: Cross multiply
    916,529.40x = 1,264,811.27 × 508,631.52
  4. Step 4: Simplify right side
    916,529.40x = 643,322,880,973.12
  5. Step 5: Solve for x
    x = 643,322,880,973.12/916,529.40
  6. Step 6: Final answer
    x = 701,911.89

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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.