Finding the Fourth Proportional to 1,386,924.61, 1,913,790.20 and 766,645.99
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Solution
The fourth proportional to 1,386,924.61, 1,913,790.20 and 766,645.99 is: 1,057,879.83
Step by Step Solution
- Step 1: Write the proportion equation
1,386,924.61 : 1,913,790.20 = 766,645.99 : x - Step 2: Convert to fraction form
1,386,924.61/1,913,790.20 = 766,645.99/x - Step 3: Cross multiply
1,386,924.61x = 1,913,790.20 × 766,645.99 - Step 4: Simplify right side
1,386,924.61x = 1,467,199,572,840.75 - Step 5: Solve for x
x = 1,467,199,572,840.75/1,386,924.61 - Step 6: Final answer
x = 1,057,879.83
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.