Finding the Fourth Proportional to 1,423,119.56, 1,963,897.99 and 778,528.04
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Solution
The fourth proportional to 1,423,119.56, 1,963,897.99 and 778,528.04 is: 1,074,364.86
Step by Step Solution
- Step 1: Write the proportion equation
1,423,119.56 : 1,963,897.99 = 778,528.04 : x - Step 2: Convert to fraction form
1,423,119.56/1,963,897.99 = 778,528.04/x - Step 3: Cross multiply
1,423,119.56x = 1,963,897.99 × 778,528.04 - Step 4: Simplify right side
1,423,119.56x = 1,528,949,641,148.83 - Step 5: Solve for x
x = 1,528,949,641,148.83/1,423,119.56 - Step 6: Final answer
x = 1,074,364.86
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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.