Home / 918,009.65-1,266,836.51-510,104.07

Finding the Fourth Proportional to 918,009.65, 1,266,836.51 and 510,104.07

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Solution

The fourth proportional to 918,009.65, 1,266,836.51 and 510,104.07 is: 703,934.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,009.65 : 1,266,836.51 = 510,104.07 : x
  2. Step 2: Convert to fraction form
    918,009.65/1,266,836.51 = 510,104.07/x
  3. Step 3: Cross multiply
    918,009.65x = 1,266,836.51 × 510,104.07
  4. Step 4: Simplify right side
    918,009.65x = 646,218,461,050.86
  5. Step 5: Solve for x
    x = 646,218,461,050.86/918,009.65
  6. Step 6: Final answer
    x = 703,934.28

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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.