Finding the Fourth Proportional to 1,122,612.04, 1,549,260.81 and 686,893.06
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Solution
The fourth proportional to 1,122,612.04, 1,549,260.81 and 686,893.06 is: 947,946.81
Step by Step Solution
- Step 1: Write the proportion equation
1,122,612.04 : 1,549,260.81 = 686,893.06 : x - Step 2: Convert to fraction form
1,122,612.04/1,549,260.81 = 686,893.06/x - Step 3: Cross multiply
1,122,612.04x = 1,549,260.81 × 686,893.06 - Step 4: Simplify right side
1,122,612.04x = 1,064,176,498,518.98 - Step 5: Solve for x
x = 1,064,176,498,518.98/1,122,612.04 - Step 6: Final answer
x = 947,946.81
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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.