Finding the Fourth Proportional to 1,560,257.60, 2,340,386.40 and 761,127.80
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Solution
The fourth proportional to 1,560,257.60, 2,340,386.40 and 761,127.80 is: 1,141,691.70
Step by Step Solution
- Step 1: Write the proportion equation
1,560,257.60 : 2,340,386.40 = 761,127.80 : x - Step 2: Convert to fraction form
1,560,257.60/2,340,386.40 = 761,127.80/x - Step 3: Cross multiply
1,560,257.60x = 2,340,386.40 × 761,127.80 - Step 4: Simplify right side
1,560,257.60x = 1,781,333,151,781.92 - Step 5: Solve for x
x = 1,781,333,151,781.92/1,560,257.60 - Step 6: Final answer
x = 1,141,691.70
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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.