Home / 910,607.89-1,256,643.63-502,702.30

Finding the Fourth Proportional to 910,607.89, 1,256,643.63 and 502,702.30

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Solution

The fourth proportional to 910,607.89, 1,256,643.63 and 502,702.30 is: 693,731.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,607.89 : 1,256,643.63 = 502,702.30 : x
  2. Step 2: Convert to fraction form
    910,607.89/1,256,643.63 = 502,702.30/x
  3. Step 3: Cross multiply
    910,607.89x = 1,256,643.63 × 502,702.30
  4. Step 4: Simplify right side
    910,607.89x = 631,717,643,081.35
  5. Step 5: Solve for x
    x = 631,717,643,081.35/910,607.89
  6. Step 6: Final answer
    x = 693,731.79

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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.