Home / 760,316.12-1,048,822.38-488,426.78

Finding the Fourth Proportional to 760,316.12, 1,048,822.38 and 488,426.78

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Solution

The fourth proportional to 760,316.12, 1,048,822.38 and 488,426.78 is: 673,763.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,316.12 : 1,048,822.38 = 488,426.78 : x
  2. Step 2: Convert to fraction form
    760,316.12/1,048,822.38 = 488,426.78/x
  3. Step 3: Cross multiply
    760,316.12x = 1,048,822.38 × 488,426.78
  4. Step 4: Simplify right side
    760,316.12x = 512,272,937,855.34
  5. Step 5: Solve for x
    x = 512,272,937,855.34/760,316.12
  6. Step 6: Final answer
    x = 673,763.09

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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.