Finding the Fourth Proportional to 1,430,400.47, 1,974,063.35 and 818,745.17
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Solution
The fourth proportional to 1,430,400.47, 1,974,063.35 and 818,745.17 is: 1,129,931.70
Step by Step Solution
- Step 1: Write the proportion equation
1,430,400.47 : 1,974,063.35 = 818,745.17 : x - Step 2: Convert to fraction form
1,430,400.47/1,974,063.35 = 818,745.17/x - Step 3: Cross multiply
1,430,400.47x = 1,974,063.35 × 818,745.17 - Step 4: Simplify right side
1,430,400.47x = 1,616,254,825,263.07 - Step 5: Solve for x
x = 1,616,254,825,263.07/1,430,400.47 - Step 6: Final answer
x = 1,129,931.70
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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.