Finding the Fourth Proportional to 1,943,470.13, 2,681,970.99 and 1,072,312.85
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Solution
The fourth proportional to 1,943,470.13, 2,681,970.99 and 1,072,312.85 is: 1,479,781.92
Step by Step Solution
- Step 1: Write the proportion equation
1,943,470.13 : 2,681,970.99 = 1,072,312.85 : x - Step 2: Convert to fraction form
1,943,470.13/2,681,970.99 = 1,072,312.85/x - Step 3: Cross multiply
1,943,470.13x = 2,681,970.99 × 1,072,312.85 - Step 4: Simplify right side
1,943,470.13x = 2,875,911,955,904.22 - Step 5: Solve for x
x = 2,875,911,955,904.22/1,943,470.13 - Step 6: Final answer
x = 1,479,781.92
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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.