Finding the Fourth Proportional to 1,246,386.18, 1,869,830.79 and 393,591.06
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Solution
The fourth proportional to 1,246,386.18, 1,869,830.79 and 393,591.06 is: 590,466.02
Step by Step Solution
- Step 1: Write the proportion equation
1,246,386.18 : 1,869,830.79 = 393,591.06 : x - Step 2: Convert to fraction form
1,246,386.18/1,869,830.79 = 393,591.06/x - Step 3: Cross multiply
1,246,386.18x = 1,869,830.79 × 393,591.06 - Step 4: Simplify right side
1,246,386.18x = 735,948,682,656.74 - Step 5: Solve for x
x = 735,948,682,656.74/1,246,386.18 - Step 6: Final answer
x = 590,466.02
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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.