Home / 916,637.51-1,264,940.72-508,715.66

Finding the Fourth Proportional to 916,637.51, 1,264,940.72 and 508,715.66

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Solution

The fourth proportional to 916,637.51, 1,264,940.72 and 508,715.66 is: 702,017.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,637.51 : 1,264,940.72 = 508,715.66 : x
  2. Step 2: Convert to fraction form
    916,637.51/1,264,940.72 = 508,715.66/x
  3. Step 3: Cross multiply
    916,637.51x = 1,264,940.72 × 508,715.66
  4. Step 4: Simplify right side
    916,637.51x = 643,495,144,367.39
  5. Step 5: Solve for x
    x = 643,495,144,367.39/916,637.51
  6. Step 6: Final answer
    x = 702,017.04

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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.