Home / 916,637.50-1,264,940.72-508,715.65

Finding the Fourth Proportional to 916,637.50, 1,264,940.72 and 508,715.65

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Solution

The fourth proportional to 916,637.50, 1,264,940.72 and 508,715.65 is: 702,017.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,637.50 : 1,264,940.72 = 508,715.65 : x
  2. Step 2: Convert to fraction form
    916,637.50/1,264,940.72 = 508,715.65/x
  3. Step 3: Cross multiply
    916,637.50x = 1,264,940.72 × 508,715.65
  4. Step 4: Simplify right side
    916,637.50x = 643,495,134,880.34
  5. Step 5: Solve for x
    x = 643,495,134,880.34/916,637.50
  6. Step 6: Final answer
    x = 702,017.03

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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.