Finding the Fourth Proportional to 1,359,403.68, 1,875,974.36 and 778,814.84
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Solution
The fourth proportional to 1,359,403.68, 1,875,974.36 and 778,814.84 is: 1,074,762.92
Step by Step Solution
- Step 1: Write the proportion equation
1,359,403.68 : 1,875,974.36 = 778,814.84 : x - Step 2: Convert to fraction form
1,359,403.68/1,875,974.36 = 778,814.84/x - Step 3: Cross multiply
1,359,403.68x = 1,875,974.36 × 778,814.84 - Step 4: Simplify right side
1,359,403.68x = 1,461,036,671,027.50 - Step 5: Solve for x
x = 1,461,036,671,027.50/1,359,403.68 - Step 6: Final answer
x = 1,074,762.92
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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.