Finding the Fourth Proportional to 530,763.74, 732,484.69 and 399,706.75
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Solution
The fourth proportional to 530,763.74, 732,484.69 and 399,706.75 is: 551,618.46
Step by Step Solution
- Step 1: Write the proportion equation
530,763.74 : 732,484.69 = 399,706.75 : x - Step 2: Convert to fraction form
530,763.74/732,484.69 = 399,706.75/x - Step 3: Cross multiply
530,763.74x = 732,484.69 × 399,706.75 - Step 4: Simplify right side
530,763.74x = 292,779,074,781.00 - Step 5: Solve for x
x = 292,779,074,781.00/530,763.74 - Step 6: Final answer
x = 551,618.46
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1.5x scale
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.