Finding the Fourth Proportional to 1,358,970.32, 2,038,751.68 and 412,415.12
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Solution
The fourth proportional to 1,358,970.32, 2,038,751.68 and 412,415.12 is: 618,712.57
Step by Step Solution
- Step 1: Write the proportion equation
1,358,970.32 : 2,038,751.68 = 412,415.12 : x - Step 2: Convert to fraction form
1,358,970.32/2,038,751.68 = 412,415.12/x - Step 3: Cross multiply
1,358,970.32x = 2,038,751.68 × 412,415.12 - Step 4: Simplify right side
1,358,970.32x = 840,812,018,757.40 - Step 5: Solve for x
x = 840,812,018,757.40/1,358,970.32 - Step 6: Final answer
x = 618,712.57
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.