Finding the Fourth Proportional to 851,389.68, 1,174,970.70 and 469,415.82
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Solution
The fourth proportional to 851,389.68, 1,174,970.70 and 469,415.82 is: 647,823.02
Step by Step Solution
- Step 1: Write the proportion equation
851,389.68 : 1,174,970.70 = 469,415.82 : x - Step 2: Convert to fraction form
851,389.68/1,174,970.70 = 469,415.82/x - Step 3: Cross multiply
851,389.68x = 1,174,970.70 × 469,415.82 - Step 4: Simplify right side
851,389.68x = 551,549,834,616.47 - Step 5: Solve for x
x = 551,549,834,616.47/851,389.68 - Step 6: Final answer
x = 647,823.02
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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.