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Finding the Fourth Proportional to 877,602.80, 1,316,404.20 and 779,625.20

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Solution

The fourth proportional to 877,602.80, 1,316,404.20 and 779,625.20 is: 1,169,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,602.80 : 1,316,404.20 = 779,625.20 : x
  2. Step 2: Convert to fraction form
    877,602.80/1,316,404.20 = 779,625.20/x
  3. Step 3: Cross multiply
    877,602.80x = 1,316,404.20 × 779,625.20
  4. Step 4: Simplify right side
    877,602.80x = 1,026,301,887,705.84
  5. Step 5: Solve for x
    x = 1,026,301,887,705.84/877,602.80
  6. Step 6: Final answer
    x = 1,169,437.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.